diff --git a/asserts.js b/asserts.js
index 0da7d35..c9b9eee 100644
--- a/asserts.js
+++ b/asserts.js
@@ -735,6 +735,22 @@
       return { inc, dec: DM['n'] };
     }
     __assert(__tSubTarIncDec, [], { inc: 3, dec: 2 }, 'dmEx target ^inc/^dec updates current numeric target by one');
+    function __tSubTarJsos() {
+      __reset();
+      _dm.set('src', { a: 1, b: [2, 3] });
+      const el = document.createElement('div');
+      dmEx(el, 'data-m-ex:out^jsos@src', 'val');
+      return DM['out'];
+    }
+    __assert(__tSubTarJsos, [], '{\n  "a": 1,\n  "b": [\n    2,\n    3\n  ]\n}', 'dmEx target ^jsos precomputed flag applies JSON stringify to output');
+    function __tSubTarWindowProp() {
+      __reset();
+      _dm.set('title', 'dmax-test');
+      const el = document.createElement('div');
+      dmEx(el, 'data-m-ex:_window.document.title@title', 'val');
+      return document.title;
+    }
+    __assert(__tSubTarWindowProp, [], 'dmax-test', 'dmEx target _window property written via precomputed _el');
     function __tSubSignalSiModPathAndExpr() {
       __reset();
       _dm.set('foo', { bar: 7 });
@@ -1369,6 +1385,42 @@
       } finally { tplEl.remove(); el.remove() }
     }
     __assert(__tDumpExplicitTemplate, [], 2, 'dmIt +#tplId explicit template reference appends 2 clones')
+    function __tDumpSingleItemGrowth() {
+      __reset()
+      const el = document.createElement('ul')
+      const tpl = document.createElement('template')
+      tpl.innerHTML = '<li data-idx="$ix">item</li>'
+      el.appendChild(tpl)
+      document.body.appendChild(el)
+      try {
+        _dm.set('items', ['a', 'b'])
+        dmIt(el, 'data-m-it@items')
+        const before = el.children.length
+        setSiAndNotifySubs('t', { root: 'items', path: null }, ['a', 'b', 'c'])
+        const after = el.children.length
+        const lastIdx = el.lastElementChild ? el.lastElementChild.getAttribute('data-idx') : null
+        return { before, after, lastIdx }
+      } finally { el.remove() }
+    }
+    __assert(__tDumpSingleItemGrowth, [], { before: 2, after: 3, lastIdx: '2' }, 'dmIt single-item growth fast path appends one node directly')
+    function __tDumpMultiItemGrowth() {
+      __reset()
+      const el = document.createElement('ul')
+      const tpl = document.createElement('template')
+      tpl.innerHTML = '<li data-idx="$ix">item</li>'
+      el.appendChild(tpl)
+      document.body.appendChild(el)
+      try {
+        _dm.set('items', ['a'])
+        dmIt(el, 'data-m-it@items')
+        const before = el.children.length
+        setSiAndNotifySubs('t', { root: 'items', path: null }, ['a', 'b', 'c', 'd'])
+        const after = el.children.length
+        const idxs = Array.from(el.children).map(n => n.getAttribute('data-idx'))
+        return { before, after, idxs }
+      } finally { el.remove() }
+    }
+    __assert(__tDumpMultiItemGrowth, [], { before: 1, after: 4, idxs: ['0', '1', '2', '3'] }, 'dmIt multi-item growth uses fragment path')
     __assert(() => {
       __reset()
       _dm.set('user', { name: 'Ann' })
@@ -2189,6 +2241,44 @@
       return { sameChild: from.firstElementChild === child, text: from.textContent }
     }
     __assert(__tMorphNoSkipsSubtree, [], { sameChild: true, text: 'keep2' }, 'data-m-no skips subtree morph')
+    function __tMorphTextOnlyFocused() {
+      const input = document.createElement('div')
+      input.setAttribute('class', 'cell')
+      input.textContent = 'old'
+      document.body.appendChild(input)
+      try {
+        input.focus()
+        const to = document.createElement('div')
+        to.setAttribute('class', 'cell')
+        to.textContent = 'new'
+        morph(input, to)
+        return { text: input.textContent, cls: input.getAttribute('class') }
+      } finally { input.remove() }
+    }
+    __assert(__tMorphTextOnlyFocused, [], { text: 'new', cls: 'cell' }, 'morph: text-only focused element still updates text via normal path')
+    function __tMorphTextOnlyAttrsDiffer() {
+      const from = document.createElement('span')
+      from.setAttribute('class', 'old')
+      from.textContent = 'old'
+      const to = document.createElement('span')
+      to.setAttribute('class', 'new')
+      to.textContent = 'new'
+      morph(from, to)
+      return { text: from.textContent, cls: from.getAttribute('class') }
+    }
+    __assert(__tMorphTextOnlyAttrsDiffer, [], { text: 'new', cls: 'new' }, 'morph: text-only with attr mismatch updates both attrs and text')
+    function __tMorphTextOnlyFastPath() {
+      const from = document.createElement('td')
+      from.setAttribute('class', 'cell')
+      from.textContent = '42'
+      const origText = from.firstChild
+      const to = document.createElement('td')
+      to.setAttribute('class', 'cell')
+      to.textContent = '99'
+      morph(from, to)
+      return { text: from.textContent, sameNode: from.firstChild === origText, cls: from.getAttribute('class') }
+    }
+    __assert(__tMorphTextOnlyFastPath, [], { text: '99', sameNode: true, cls: 'cell' }, 'morph: text-only fast path assigns nodeValue directly')
     function __tDmaxPatchElementsReplaceDiscardsFormState() {
       const container = document.createElement('div')
       container.innerHTML = '<input id="fi-inp" type="text" value="default">'
diff --git a/dist/dmax.min.js b/dist/dmax.min.js
index ea3c2be..f58ebde 100644
--- a/dist/dmax.min.js
+++ b/dist/dmax.min.js
@@ -1 +1 @@
-const indexFirst=(e,t,n=0)=>{let r,o=e.length;for(let l of t)(r=e.indexOf(l,n))>=0&&r<o&&(o=r);return o===e.length?-1:o},NIL=Object.freeze([]),CAMEL_NAMES=new Map,KEBAB_NAMES=new Map,kebabToCamel=e=>{if(!e)return e;if(e.indexOf("-")<0)return CAMEL_NAMES.set(e,e),e;let t=CAMEL_NAMES.get(e);return t||(t=e.replace(/-+([a-zA-Z]?)/g,(e,t)=>t?t.toUpperCase():""),CAMEL_NAMES.set(e,t),KEBAB_NAMES.set(t,e),t)},camelToKebab=e=>{if(!e)return e;let t=KEBAB_NAMES.get(e);return t||(t=e.replace(/[A-Z]/g,e=>"-"+e.toLowerCase()),KEBAB_NAMES.set(e,t),CAMEL_NAMES.set(t,e),t)},MOD="^",TARG=":",TRIG="@",ADD="+",ALL=["^",":","@","+"],MODS=["^"],DOT=".",ID="#",NOT="!",BRACKET_OPEN="[",BRACKET_CLOSE="]",NAME_DELIMS=[".","["],SEL_LEADS="#.[*:",SSE_COMMENT=":",SI="s",EP=".",SP="_",M_WITH_SHAPE="with_shape",M_SHAPE_ONLY="shape_only",M_IMMEDIATE="immediate",M_NOTIMMEDIATE="notimmediate",M_ONCE="once",M_ALWAYS="always",M_DEBOUNCE="debounce",M_THROTTLE="throttle",M_PREVENT="prevent",M_AND="and",M_EQ="eq",M_NE="ne",M_LT="lt",M_GT="gt",M_LE="le",M_GE="ge",M_PR="pr",M_ATTRS="attrs",M_SI_V="si",M_EV_V="ev",M_RW="rw",M_NUM="num",M_JSOS="jsos",M_JSON="json",M_TEXT="text",M_HTML="html",M_FORM="form",M_SSE="sse",M_BUSY="busy",M_COMPLETE="complete",M_ERR="err",M_CODE="code",M_STAT="stat",M_NO_CACHE="noCache",M_HS="hs",M_HS_NO_KEBAB="hsNoKebab",M_AUTH="auth",M_BROTLI="brotli",M_BR="br",M_GZIP="gzip",M_DEFLATE="deflate",M_COMPRESS="compress",M_REPLACE="replace",M_MERGE="merge",M_APPEND="append",M_PREPEND="prepend",M_BEFORE="before",M_AFTER="after",M_INNER="inner",M_REMOVE="remove",M_OUTER="outer",M_SSE_OPEN="open",M_SSE_CLOSE="close",M_RETRY="retry",M_ABORT="abort",M_URL="url",M_BODY="body",M_HDR="header",M_SPREAD="spread",M_SEND_ALL="sendAll",M_PATCH_ALL="patchAll",M_SYNC_ALL="syncAll",M_DEBOUNCE_MS=500,M_THROTTLE_MS=500,M_RETRY_MS=1e3,H_ACCEPT="accept",H_ACCEPT_ENCODING="accept-encoding",H_AUTHORIZATION="authorization",H_CACHE_CONTROL="cache-control",H_CONTENT_TYPE="content-type",H_PRAGMA="pragma",noProto=()=>Object.create(null),ACT_HS_EMPTY=Object.freeze(noProto()),ACT_HS_JSON=Object.freeze({[H_CONTENT_TYPE]:"application/json",[H_ACCEPT]:"application/json"}),ACT_HS_HTML=Object.freeze({[H_ACCEPT]:"text/html"}),ACT_HS_FORM=Object.freeze({[H_CONTENT_TYPE]:"application/x-www-form-urlencoded"}),ACT_HS_TEXT=Object.freeze({[H_CONTENT_TYPE]:"text/plain;charset=UTF-8"}),ACT_HS_NO_CACHE=Object.freeze({[H_CACHE_CONTROL]:"no-cache",[H_PRAGMA]:"no-cache"}),ACT_HS_SSE=Object.freeze({[H_ACCEPT]:"text/event-stream",[H_CACHE_CONTROL]:"no-cache",[H_PRAGMA]:"no-cache"}),SP_WIN="window",SP_DOC="document",SP_FORM="form",SP_INTERVAL="interval",SP_TIMEOUT="timeout",SP_VIEWED="viewed",SP_INIT="init",SPS=[SP_WIN,SP_DOC,"form","interval","timeout","viewed","init"],SP_WIN_EV="resize",SP_DOC_EV="visibilitychange",SP_INTERVAL_MS=500,SP_TIMEOUT_MS=500,SP_TA_WIN=1,SP_TA_DOC=2,SP_TA_FORM=3,SP_DEFS=Object.assign(noProto(),{[SP_WIN]:{ta:1,ev:"resize"},[SP_DOC]:{ta:2,ev:SP_DOC_EV},[SP_FORM]:{ta:3,ev:"submit",immediate:1},[SP_INTERVAL]:{ms:500,repeat:1},[SP_TIMEOUT]:{ms:500},[SP_VIEWED]:{io:1},[SP_INIT]:{init:1,act:1}}),ACT_METHODS=Object.freeze({get:"GET",post:"POST",put:"PUT",patch:"PATCH",delete:"DELETE"}),DM_KEY="data-m-",DM_NO="data-m-no",DM_NO_SCAN=DM_NO+"^scan",DM_NO_MORPH=DM_NO+"^morph",E_RW_REQ="dmEx ^rw requires an element/property trigger in:",E_RW_EL="dmEx ^rw source element is not found in trigger:",E_RW_EV="dmEx ^rw event is not found in trigger:",E_TRIG_EL="Element is not found in trigger:",E_TRIG_EV="Event is not found in trigger:",E_FORM_EL="Form element is not found for trigger:",IT_STATES=new WeakMap,IT_ATTRS=new WeakMap,isSp=e=>{if(e.startsWith(SP))for(const t of SPS)if(e.startsWith(t,1))return!0;return!1},mkIt=(e,t,n,r,o=NIL)=>({kind:e,not:t,root:n,path:r,mods:o,sp:e===SP&&SP_DEFS[n]||null,isSi:e===SI,isEv:e===EP,isSp:e===SP,isImmediate:null}),mkMod=(e,t,n)=>({kind:"^",not:e,root:t,path:n,isImmediate:"immediate"===t||"notimmediate"!==t&&null}),DEFAULT_PR_TA=Object.freeze(mkIt(EP,null,"",null)),RE_DIGITS=/^\d+$/,parseRef=(e,t,n=0)=>{if(!t)return null;let r=n,o=t.length;for(;t.startsWith("!",r);)++r;let l=0==r?null:r%2!=0,s=indexFirst(t,NAME_DELIMS,r),i=s<0?0==r?t:t.slice(r):t.slice(r,s),a=EP;if(i&&i.length>0){const n=i[0]===ID;if(n||isSp(i)){if(a=n?EP:SP,i=i.slice(1),!i)return logErr("empty",a+":",t,e),null}else a=SI,i=kebabToCamel(i)}if(s<0&&!i&&null!==l)return logErr("bare","!:",t),null;if(s<0||"."===t[s]&&s+1==o)return mkIt(a,l,i,null);r=s;let u=[];for(;r>=0&&r<o;){const n=t[r];if("."===n){const n=++r;s=indexFirst(t,NAME_DELIMS,r);const l=t.slice(n,r=s<0?o:s);if(!l)return logErr("empty path part:",t,e),null;u.push(kebabToCamel(l))}else{if("["!==n)return logErr("bad path token:",t,e),null;{if(s=t.indexOf("]",r+1),s<0)return logErr("missing ]:",t,e),null;const n=t.slice(r+1,s);if(!isDigitsOnly(n))return logErr("non-const idx:",n,t,e),null;u.push(n),r=s+1}}}return mkIt(a,l,i,u)},parseMod=(e,t)=>{if(!t)return null;let n=0,r=t.length;for(;t.startsWith("!",n);)++n;let o=0==n?null:n%2!=0;const l=indexFirst(t,NAME_DELIMS,n);let s=l<0?0==n?t:t.slice(n):t.slice(n,l);if(s&&(s=kebabToCamel(s)),!s)return logErr("empty mod:",t,e),null;if("attrs"===s){if(l<0||l+1>=r)return mkMod(o,s,{r:"",v:""});const n=t.slice(l+1);if(n[0]!==ID)return mkMod(o,s,{r:"",v:n});const i=n.indexOf(".",1),a=n.slice(1,i<0?n.length:i);return a?mkMod(o,s,{r:a,v:i<0?"":n.slice(i+1)}):(logErr("empty attrs mod:",t,e),null)}return mkMod(o,s,l<0||l+1>=r?null:t.indexOf(".",n=l+1)<0?kebabToCamel(t.slice(n)):parseRef(e,t,n))},parse=(e,t)=>{t??=5;const n=e.length,r=noProto();for(r["^"]=r[":"]=r["@"]=r["+"]=NIL;t>=0&&t<n;){if((t=indexFirst(e,ALL,t))<0){t=n;break}const o=e[t];let l=null;if(++t<n){const r=indexFirst(e,ALL,t),s=e.slice(t,t=r<0?n:r);s&&(l="^"==o?parseMod(e,s):parseRef(e,s))}if(!l)continue;if("^"==o){const e=r["^"];e===NIL?r["^"]=[l]:e.push(l),null!==l.isImmediate&&(r["^"].isImmediate=l.isImmediate);continue}let s=null;for(;t<n&&"^"==e[t];){const r=indexFirst(e,ALL,++t),o=e.slice(t,t=r<0?n:r),l=parseMod(e,o);l&&(s?s.push(l):s=[l],null!==l.isImmediate&&(s.isImmediate=l.isImmediate))}const i=r["^"],a=r[o];l.mods=s?i.length?s.concat(i):s:i,l.isImmediate=s?.isImmediate??i.isImmediate??null,a===NIL?r[o]=[l]:a.push(l)}return t<n&&warn("unparsed tail:",e.slice(t),e),[r,t]},_parseCache=new Map,parseCached=e=>{let t=_parseCache.get(e);return t||_parseCache.set(e,t=parse(e)[0]),t},RETURN_THEN=[" ","(","{",";","[",'"',"'","\n","\r","\t"],FN_ARGS=["dm","el","trig","val","detail"],_compiledFnCache=new Map,compileFn=(e,t,n=FN_ARGS)=>{const r=n===FN_ARGS?e+"\0"+t:null;if(null!==r&&_compiledFnCache.has(r))return _compiledFnCache.get(r);let o=""+e;const l=o.indexOf("return");let s,i=l>=0&&(l+6>=o.length||indexFirst(o,RETURN_THEN,l+6)==l+6)?o:`return(${o})`;i=`try{ ${i} }catch(e){ console.error('[dmax]','eval ${t}:',e.message,${o}); return }`;try{s=Function(...n,i)}catch(e){return void logErr(`compile ${t}:`,e.message,o)}return null!==r&&_compiledFnCache.set(r,s),s},_dm=new Map,DM=new Proxy({},{get:(e,t)=>_dm.get(t),set:(e,t,n)=>(_dm.set(t,n),!0),has:(e,t)=>_dm.has(t),ownKeys:()=>Array.from(_dm.keys()),getOwnPropertyDescriptor:(e,t)=>_dm.has(t)?{value:_dm.get(t),enumerable:!0,configurable:!0}:void 0}),dmSi=(e,t,n)=>{const r=parseCached(t),o=r[":"];(r["^"].length||r["@"].length||r["+"].length)&&warn("targets only:",t);let l=compileFn(n,t);if(!l)return;let s=n?l(DM,e,null):null;if(o.length)for(const e of o)e.kind==SI?(e.mods.length&&warn("mods ignored:",e.mods,t),_dm.set(e.root,s)):logErr("signal targets only:",e,t);else{if(!s||"object"!=typeof s)return logErr("object value expected:",t,n);for(const e in s)_dm.set(kebabToCamel(e),s[e])}},dmDbg=e=>{e&&(_debugEls.add(e),updateDebug())},getElById=(e,t)=>{const n=document.getElementById(e);return n||logErr(`no #${e}:`,t),n},getDefaultPr=e=>{const t=e.type,n=e.tagName;return"checkbox"===t||"radio"===t?"checked":"DETAILS"===n?"open":"INPUT"===n||"SELECT"===n||"TEXTAREA"===n?"value":"textContent"},getDefaultEv=e=>{const t=e.tagName;return"FORM"===t?"submit":"DETAILS"===t?"toggle":"INPUT"===t||"SELECT"===t||"TEXTAREA"===t?"change":"click"},getElPrVal=(e,t)=>{if(!e)return null;const n=t&&t.length?t[0]:getDefaultPr(e);let r=e[n];return void 0===r&&e.getAttribute&&(r=e.getAttribute(camelToKebab(n))),t&&t.length>1?getPrValAndDepth(r,t,-1,1)[0]:r},isDefaultPrName=(e,t)=>t===getDefaultPr(e)||"value"===t||"checked"===t||"textContent"===t,mkEv=e=>{try{return new Event(e,{bubbles:!0})}catch(t){const n=document.createEvent("Event");return n.initEvent(e,!0,!0),n}},isNil=e=>null==e,getPrValAndDepth=(e,t,n=-1,r=0)=>{let o=e;if(isNil(o)||!t)return[o,0];let l=-1==n||n>t.length-r?t.length-r:n;for(let e=0;e<l;++e)if(isNil(o=o[t[e+r]]))return[o,e+1];return[o,l]},VAL_CHANGE_DEPTH_MAX=32,valChangedDeep=(e,t,n=0)=>{if(n>=32)return console.warn("[dmax] Warning: too deep to compare for signal value change, consider it changed, stopped at:",32),!0;const r=e,o=t;if(Array.isArray(r)){if(!Array.isArray(o)||r.length!=o.length)return!0;for(let e=0;e<r.length;++e)if(valChangedDeep(r[e],o[e],++n))return!0}else if(r&&"object"==typeof r){if(!o||"object"!=typeof o)return!0;for(const e in r){if(!(e in o))return!0;if(valChangedDeep(r[e],o[e],++n))return!0}for(const e in o)if(!(e in r))return!0}else if(o!==r)return!0;return!1},setPr=(e,t,n,r)=>{if(!n.isEv)return null;let o=n.root?getElById(n.root,t):e;const l=n.path;let s=l?null:getDefaultPr(o);if(l&&l.length&&([o]=getPrValAndDepth(o,l,l.length-1),s=l.at(-1)),!o||!s)return logErr("Error setting non existing property for:",n,"in",t);try{if("style"===s&&isPlainObj(r)&&o[s])for(const e in r){const t=o[s],n=r[e],l="-"===e[0]?e:"--"+camelToKebab(e);e in t?valChangedDeep(t[e],n)&&(t[e]=n):t.getPropertyValue(l)!==""+n&&t.setProperty(l,n)}else if(o&&"function"==typeof o.setProperty&&!(s in o)){const e="-"===s[0]?s:"--"+camelToKebab(s);o.getPropertyValue(e)!==""+r&&o.setProperty(e,r)}else valChangedDeep(o[s],r)&&(o[s]=r)}catch(t){logErr("Error: Failed to set property:",t.message,">>>",n,"on",e)}return o[s]},getComputedDisplay=e=>"undefined"!=typeof window&&window.getComputedStyle?window.getComputedStyle(e).display:"",applyClVal=(e,t,n)=>{for(const r of e){const e=r.kb||(r.kb=camelToKebab(r.root));(r.not?!n:n)?t.classList.add(e):t.classList.remove(e)}},applyDisplayValue=(e,t,n,r)=>{const o=e.style.display;r?t||"none"===o||"none"===getComputedDisplay(e)?e.style.display=n:e.style.removeProperty("display"):"none"!==o&&(e.style.display="none")},diffShapeShallow=(e,t)=>{let n=e,r=t;if(n&&"object"==typeof n||(n=NIL),r&&"object"==typeof r||(r=NIL),Array.isArray(n)){if(Array.isArray(r)){const e=r.length,t=n.length;return e==t?null:e>t?{addedRange:[t,e-t]}:{removedRange:[e,t-e]}}let e=[];for(const t in r)hasOwn(r,t)&&e.push(t);return{added:e,removedRange:[0,n.length]}}if(Array.isArray(r)){let e=[];for(const t in n)hasOwn(n,t)&&e.push(t);return{removed:e,addedRange:[0,r.length]}}let o=[],l=[];for(const e in r)e in n||o.push(e);for(const e in n)e in r||l.push(e);return o.length?l.length?{added:o,removed:l}:{added:o}:l.length?{removed:l}:null},samePath=(e,t)=>{if(e.length!==t.length)return!1;for(let n=0;n<e.length;++n)if(e[n]!==t[n])return!1;return!0},SIG_CHANGED_ANY=0,SIG_CHANGED_WITH_SHAPE=1,SIG_CHANGED_SHAPE_ONLY=2,MV_PR=1,MV_SI=2,MV_EV=3,MV_ATTRS=4,MF_ONCE=1,MF_ALWAYS=2,MF_PREVENT=4,MF_NUM=8,MF_RW=16,pickMods=(e,t)=>e.length?e:t,modPath=e=>null==e?NIL:e.kind?e.root?e.path?.length?[e.root,...e.path]:[e.root]:e.path||NIL:Array.isArray(e)?e:[e],compileMods=(e,t)=>{const n=null!=e.sp?.ms;let r=0,o=0,l=0,s=null,i=NIL,a=0,u=0,c="",d=null;for(const e of t){const t=e.root;if("with_shape"===t)a=1;else if("shape_only"===t)a=2;else if("pr"===t){const t=e.path;u=1,c=t?.isEv&&t.root||"",i=t?.isEv?t.path||NIL:modPath(t)}else"attrs"===t?(u=4,c=e.path?.r||"",i=e.path?.v||""):"si"===t?(u=2,i=modPath(e.path)):"ev"===t?(u=3,i=modPath(e.path)):"once"===t?r|=1:"always"===t?r|=2:"prevent"===t?r|=4:"num"===t?r|=8:"jsos"===t?d=e.path??2:"rw"===t?r|=16:n||"debounce"!==t?n||"throttle"!==t?t in PERMIT_MODS&&(s=s?s.push?(s.push(e),s):[s,e]:e):l=+(resolveMPathVal(e.path)??500)||500:o=+(resolveMPathVal(e.path)??500)||500}return{f:r,d:o,t:l,p:s,v:i,c:a,s:u,r:c,j:d}},getTrPrTa=(e,t,n,r,o,l,s=!0)=>{const i=n.root?getElById(n.root,t):e;if(!i)return logErr("Error:",o,n,"in:",t),null;let a=n.path?n.path[0]:null,u=null;a&&isDefaultPrName(i,a)&&(u=n.path,a=getDefaultEv(i));const c=1!==r.s&&4!==r.s||!r.r?i:getElById(r.r,t),d=1===r.s?r.v.length?r.v:u:4===r.s?r.v:u;return 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y=function(n,u,P,v,I){if(P=P||t,!S){if(d&&I?.preventDefault?.(),s)return A??=function(){S=!0;try{y(_,T,null,M,b)}finally{S=!1}},_=n,T=u,M=v,b=I,clearTimeout(g),void(g=setTimeout(A,s));if(i){const e=Date.now();if(e-E<i)return;E=e}}const N=I&&I.detail;let C=3!==p||o?o?v??getSiVal(P):v??N?.value??N?.ms??I:N?.value??N?.ms??I;if(f&&(C=getPrValAndDepth(C,l)[0]),m&&(C=null==C||""===C?null:+C),P.not&&(C=!C),!a||modsPermitVal(a,C)){null!=h&&(C=dmJsos(C,h));try{e(n,u,P,C,I)}catch(e){logErr("handler:",e)}c&&removeSubOrClearId(r)}};return y},_cleanupBoundSubs=new WeakMap,dmEx=(e,t,n)=>{const r=parseCached(t),o=r[":"],l=r["@"],s=r["^"];r["+"].length&&warn("targets/triggers/mods only:",t);const i=null!=n&&""+n;let a=i?compileFn(n,t):(e,t,n,r)=>r;if(i&&!a)return;const u=e?upsert(_cleanupBoundSubs,e):null;if(!o.length&&l.length){const n=[],r=[],o=[];for(const i of l){const 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u=a(n,e,l,s,i);for(const e of o)setSiAndNotifySubsNDeep(t,e[0],combineActResult(getSiVal(e[0]),u,e[1]))},u,n.taEl,n.ev,n.prPath,n.readPath,n.readEl);0!=n.tr.isImmediate&&invokeSub(r,null,getReadVal(n.readEl,n.mod,n.readPath),e,n.tr)}return}}if(o.length){const e=a;a=(n,r,l,s,i)=>{const a=e(n,r,l,s,i);let u=null;try{for(const e of o){u=e;const n=getWriteMode(e.mods),o=e.mods&&e.mods.some(e=>"jsos"===e.root)?dmJsos(a):a,l=combineActResult(e.isSi?getSiVal(e):getElPrVal(e.root?getElById(e.root,t):r,e.path),o,n);e.isSi?setSiAndNotifySubsNDeep(t,e,l):setPr(r,t,e,l)}}catch(e){logErr("Error: setting target",u,"in",t,"ended with ex:",e)}}}if(!l.length)return void(i&&a(DM,e,null,null,null));let c=!1;for(const n of l){const r=pickMods(n.mods,s),o=compileMods(n,r);if(n.isSi){const t=addTrSub(e,n,o,a,u);c||0==n.isImmediate||(c=!0,invokeBoundSub(t));continue}if(!n.isEv&&!n.isSp)return logErr("Error: unsupported trigger kind",n.kind,"in",t);const 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t=[e],n=[];for(let e=0;e<t.length;++e){const r=t[e];if(noScan(r))continue;const o=r.attributes||NIL;for(let e=0;e<o.length;++e){const t=o[e];0===t.name.indexOf("data-m-si")?wireNode(r,t.name,t.value):n.push([r,t.name,t.value])}const l=r.children||NIL;for(let e=0;e<l.length;++e)t.push(l[e])}for(let e=0;e<n.length;++e)wireNode(n[e][0],n[e][1],n[e][2])};globalThis.dm=DM,globalThis.dmJsos=dmJsos,globalThis.wireNode=wireNode,globalThis.dmScan=dmScan;const dmIt=(e,t)=>{const n=parseCached(t),r=n["@"],o=n["+"],l=n["^"];if(!r.length)return logErr("Error: dmIt requires a signal trigger in:",t);const s=r[0];if(!s.isSi)return logErr("Error: dmIt trigger must be a signal in:",t);const i=pickMods(s.mods,l);let a=null;if(o.length&&o[0].isEv&&o[0].root&&(a=getElById(o[0].root,t)),a||(a=e.querySelector("template")),a&&a.parentNode===e&&a.parentNode.removeChild(a),!a)return logErr("Error: dmIt template not found for:",t);const u=a.content&&a.content.firstElementChild;if(!u)return logErr("Error: dmIt 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void(n.outerHTML=""+l)}const s=((e,n)=>{if(!e)return t;const r=(n||"html").toLowerCase();if("html"===r){dn.innerHTML=e;const n=dn.content.firstElementChild;if(!n)return t;if(!n.nextElementSibling)return[n];const r=[n];for(let e=n.nextElementSibling;e;e=e.nextElementSibling)r.push(e);return r}const o="svg"===r?`<svg xmlns="http://www.w3.org/2000/svg">${e}</svg>`:`<math xmlns="http://www.w3.org/1998/Math/MathML">${e}</math>`,l=(new DOMParser).parseFromString(o,"svg"===r?"image/svg+xml":"application/xml").documentElement;return l?Array.from(l.children):[]})(l,o);if(n!==V)if(n!==L&&n!==$&&n!==z&&n!==D){if(r){if(!s.length)return;const e=mn(r);if(1===e.length&&1===s.length)return void Sn(e[0],s[0],n,!0);const t=s[0];for(let r=0;r<e.length;r++)Sn(e[r],s[r]||t,n);return}if(s.length)for(const e of s)e.id?Sn(document.getElementById(e.id),e,n,!0):bt("patch needs ids without selector")}else{if(!r||!s.length)return;for(const e of document.querySelectorAll(r)){const t=document.createDocumentFragment(),r=n===$?e.firstChild||null:n===z?e:e.nextSibling;for(const e of s)t.appendChild(e.cloneNode(!0));n===L?e.appendChild(t):(n===$?e:e.parentNode)?.insertBefore(t,r)}}else if(r)for(const e of document.querySelectorAll(r))e.remove();else for(const e of s)e.id?document.getElementById(e.id)?.remove():bt("patch remove needs ids without selector")},xn=(e,t)=>{if(null===t)return bn;if(!at(t))return t;const n=at(e)?dt(e):G();for(const e in t)if(ft(t,e)){const r=xn(n[e],t[e]);r===bn?delete n[e]:n[e]=r}return n},An=(e,t,n)=>{const r=t[1],o=t[0];t[2]&&r&&("dm-elements"===o?(wn(r),e.push({event:o,args:r})):"dm-signals"===o&&(((e,t)=>{const n=t.dmSignals;if(!n)return;let r=null;try{r=JSON.parse(n)}catch(t){return Et("patch sigs in",e,"expect JSON but found invalid format")}if(!at(r))return;const o="true"===(t.onlyIfMissing||"").toLowerCase();for(const t in r)if(ft(r,t)){if(o&&Re.has(t))continue;const n=xn(Re.get(t),r[t]),l=Te(h,null,t,null);n!==bn?Ht(e,l,n):Re.has(t)&&(Ht(e,l,void 0),Re.delete(t),Bt())}})(n,r),e.push({event:o,args:r}))),t[0]="message",t[1]=null,t[2]=!1},Tn=(e,t,n,r)=>{const o="\r"===e[e.length-1]?e.slice(0,-1):e;if(!o)return An(n,t,r);if(":"===o[0])return;const l=o.indexOf(":"),s=l<0?o:o.slice(0,l);let i=l<0?"":o.slice(l+1);if(" "===i[0]&&(i=i.slice(1)),"event"===s)t[0]=i||"message";else if("data"===s){const e=i.indexOf(" ");if(e<0)return;const n=i.slice(0,e),r=i.slice(e+1),o=t[1]||(t[1]=G());t[2]=!0,o[n]?o[n]+="\n"+r:o[n]=r}},In=(e,n="dmax-sse")=>{if(!e)return t;const r=[],o=""+e,l=["message",null,!1];let s,i=0;for(;(s=o.indexOf("\n",i))>=0;)Tn(o.slice(i,s),l,r,n),i=s+1;return i<o.length&&Tn(o.slice(i),l,r,n),An(r,l,n),r},Cn=async(e,n,r)=>{if(!e||"function"!=typeof e.getReader)return t;const o=(e,t)=>r&&Ht(n,r[e],t),l=[],s=e.getReader(),i=new TextDecoder,u=["message",null,!1];let c="",a=!1;try{for(;;){const{done:e,value:t}=await s.read();if(e)break;let r;for(a||(a=!0,o(F,!0),o(_,!1)),c+=i.decode(t,{stream:!0});(r=c.indexOf("\n"))>=0;)Tn(c.slice(0,r),u,l,n),c=c.slice(r+1)}const e=i.decode();e&&(c+=e),c&&Tn(c,u,l,n),An(l,u,n)}catch(e){return o(F,!1),o(N,e.message||""+e),Et("SSE stream error:",e),l}return o(F,!1),o(_,!0),l},On=e=>{if(!e||1!==e.nodeType&&11!==e.nodeType)return;const n=[e];for(;n.length;){const e=n.pop(),r=Kt.get(e);if(r){for(const e of r)Pt(e);Kt.delete(e)}const o=e.shadowRoot;o&&n.push(o);const l=e.children||t;for(let e=0;e<l.length;++e)n.push(l[e])}},Nn=new MutationObserver(e=>{for(const t of e)for(const e of t.removedNodes)On(e)}),kn=new WeakSet;en=e=>{!e||kn.has(e)||1!==e.nodeType&&11!==e.nodeType||(kn.add(e),Nn.observe(1===e.nodeType?e:e===document?document.body:e,{childList:!0,subtree:!0}))},en(document.body);
diff --git a/dist/dmax.min.js.br b/dist/dmax.min.js.br
index 60237ba..2d18c89 100644
Binary files a/dist/dmax.min.js.br and b/dist/dmax.min.js.br differ
diff --git a/dist/dmax.min.js.gz b/dist/dmax.min.js.gz
index 96dd36d..8cc560b 100644
Binary files a/dist/dmax.min.js.gz and b/dist/dmax.min.js.gz differ
diff --git a/dmax.js b/dmax.js
index 798f1f9..09cd408 100644
--- a/dmax.js
+++ b/dmax.js
@@ -30,7 +30,6 @@
 
     const MOD = '^', TARG = ':', TRIG = '@', ADD = '+'
     const ALL = [MOD, TARG, TRIG, ADD]
-    const MODS = [MOD]
 
     const DOT = '.', ID = '#', NOT = '!', BRACKET_OPEN = '[', BRACKET_CLOSE = ']'
     const NAME_DELIMS = [DOT, BRACKET_OPEN]
@@ -77,15 +76,15 @@
     })
     const ACT_METHODS = Object.freeze({ get: 'GET', post: 'POST', put: 'PUT', patch: 'PATCH', delete: 'DELETE' }), DM_KEY = 'data-m-'
     const DM_NO = DM_KEY + 'no', DM_NO_SCAN = DM_NO + '^scan', DM_NO_MORPH = DM_NO + '^morph'
-    const E_RW_REQ = `dmEx ${MOD}${M_RW} requires an element/property trigger in:`
-    const E_RW_EL = `dmEx ${MOD}${M_RW} source element is not found in trigger:`
-    const E_RW_EV = `dmEx ${MOD}${M_RW} event is not found in trigger:`
-    const E_TRIG_EL = 'Element is not found in trigger:', E_TRIG_EV = 'Event is not found in trigger:', E_FORM_EL = 'Form element is not found for trigger:'
+    const E_RW_REQ = `dmEx ${MOD}${M_RW} requires element/property trigger:`
+    const E_RW_EL = `dmEx ${MOD}${M_RW} element not found:`
+    const E_RW_EV = `dmEx ${MOD}${M_RW} event not found:`
+    const E_TRIG_EL = 'element not found:', E_TRIG_EV = 'event not found:', E_FORM_EL = 'form element not found:'
     const IT_STATES = new WeakMap(), IT_ATTRS = new WeakMap()
     const isSp = (n) => { if (n.startsWith(SP)) for (const s of SPS) if (n.startsWith(s, 1)) return true; return false }
     const mkIt = (kind, not, root, path, mods = NIL) => ({ kind, not, root, path, mods, sp: kind === SP ? SP_DEFS[root] || null : null, isSi: kind === SI, isEv: kind === EP, isSp: kind === SP, isImmediate: null })
     const mkMod = (not, root, path) => ({ kind: MOD, not, root, path, isImmediate: root === M_IMMEDIATE ? true : root === M_NOT_IMMEDIATE ? false : null })
-    const DEFAULT_PR_TA = Object.freeze(mkIt(EP, null, '', null)), RE_DIGITS = /^\d+$/
+    const RE_DIGITS = /^\d+$/
     const parseRef = (dKey, n, pos = 0) => {
       if (!n) return null
       let p = pos, l = n.length
@@ -281,7 +280,7 @@
 
     const VAL_CHANGE_DEPTH_MAX = 32
     const valChangedDeep = (before, after, depth = 0) => {
-      if (depth >= VAL_CHANGE_DEPTH_MAX) { console.warn('[dmax] Warning: too deep to compare for signal value change, consider it changed, stopped at:', VAL_CHANGE_DEPTH_MAX); return true }
+      if (depth >= VAL_CHANGE_DEPTH_MAX) { console.warn('[dmax] deep compare limit:', VAL_CHANGE_DEPTH_MAX); return true }
       const b = before, a = after
       if (Array.isArray(b)) { // means b is also an array
         if (!Array.isArray(a) || b.length != a.length) return true
@@ -302,7 +301,7 @@
       let obj = tar.isSp ? tar.root === SP_WIN ? window : tar.root === SP_DOC ? document : tar.root === SP_HISTORY ? window.history : null : tar.root ? getElById(tar.root, dKey) : el
       const path = tar.path; let prop = !path ? getDefaultPr(obj) : null
       if (path && path.length) ([obj] = getPrValAndDepth(obj, path, path.length - 1), prop = path.at(-1))
-      if (!obj || !prop) return logErr('Error setting non existing property for:', tar, 'in', dKey)
+      if (!obj || !prop) return logErr('setting non-existing prop:', tar, 'in', dKey)
       try {
         if (typeof obj[prop] === 'function') return Array.isArray(val) ? obj[prop](...val) : obj[prop](val)
         if (prop === 'style' && isPlainObj(val) && obj[prop]) for (const k in val) {
@@ -313,7 +312,7 @@
           const cssVar = prop[0] === '-' ? prop : '--' + camelToKebab(prop)
           if (obj.getPropertyValue(cssVar) !== '' + val) obj.setProperty(cssVar, val)
         } else if (valChangedDeep(obj[prop], val)) obj[prop] = val
-      } catch (e) { logErr('Error: Failed to set property:', e.message, '>>>', tar, 'on', el) }
+      } catch (e) { logErr('Failed to set property:', e.message, '>>>', tar, 'on', el) }
       return obj[prop]
     }
     const getComputedDisplay = (el) => (typeof window !== 'undefined' && window.getComputedStyle) ? window.getComputedStyle(el).display : ''
@@ -404,15 +403,15 @@
     }
     const getTrPrTa = (el, dKey, tr, mod, missElMsg, missEvMsg, usePrPath = true) => {
       const taEl = tr.root ? getElById(tr.root, dKey) : el
-      if (!taEl) return logErr('Error:', missElMsg, tr, 'in:', dKey), null
+      if (!taEl) return logErr(missElMsg, tr, 'in:', dKey), null
       let ev = tr.path ? tr.path[0] : null, prPath = null
       if (ev && isDefaultPrName(taEl, ev)) prPath = tr.path, ev = getDefaultEv(taEl)
       const readEl = (mod.s === MV_PR || mod.s === MV_ATTRS) && mod.r ? getElById(mod.r, dKey) : taEl
       const readPath = mod.s === MV_PR || mod.s === MV_EV ? mod.v.length ? mod.v : prPath : mod.s === MV_ATTRS || mod.s === MV_SEL || mod.s === MV_SEL_ALL ? mod.v : prPath
       if (usePrPath && mod.s === MV_PR && !mod.r && mod.v.length) prPath = mod.v
       ev = ev ?? getDefaultEv(taEl)
-      if (!ev) return logErr('Error:', missEvMsg, tr, 'in:', dKey), null
-      return readEl ? { taEl, readEl, ev, prPath, readPath, tar: mkIt(EP, null, tr.root, prPath, NIL) } : logErr('Error:', missElMsg, tr, 'in:', dKey)
+      if (!ev) return logErr(missEvMsg, tr, 'in:', dKey), null
+      return readEl ? { taEl, readEl, ev, prPath, readPath, tar: mkIt(EP, null, tr.root, prPath, NIL) } : logErr(missElMsg, tr, 'in:', dKey)
     }
     const addNonSiTrSub = (el, tr, mod, fn, elSubs, ran, prTa = null) => {
       const sp = tr.sp, isSp = !!sp
@@ -447,13 +446,6 @@
     }
 
     const dmJsos = (v, sp = 2) => typeof v === 'string' ? v : JSON.stringify(v, null, +(resolveMPathVal(sp) ?? 2) || 0)
-    const resolveHtmlSelector = (mPath) => {
-      const v = resolveMPathVal(mPath)
-      if (typeof v === 'string' && v) {
-        const c = v[0]; return SEL_LEADS.includes(c) ? v : '#' + v
-      }
-      return ''
-    }
     const mkOrStatSi = (mod, fallbackRoot) => {
       if (!mod) return null
       const p = mod.path
@@ -461,23 +453,17 @@
     }
     const mkStatTar = (root, path, key) => ({ root, path: path ? path.concat(key) : [key] })
     const STAT_KEYS_F = [M_BUSY, M_COMPLETE, M_SSE_OPEN, M_SSE_CLOSE], STAT_KEYS_N = [M_ERR, M_CODE, M_ABORT]
-    const defStatSi = (stat) => {
+    const mkActStats = (mod) => {
+      const stat = mkOrStatSi(mod, M_STAT)
       if (!stat) return null
-      let cur = _dm.get(stat.root)
-      if (!cur || typeof cur !== 'object') _dm.set(stat.root, cur = noProto())
-      let parent = cur
-      const path = stat.path
+      let cur = _dm.get(stat.root); if (!cur || typeof cur !== 'object') _dm.set(stat.root, cur = noProto())
+      let parent = cur; const path = stat.path
       if (path && path.length) for (let i = 0; i < path.length; ++i) parent = parent[path[i]] && typeof parent[path[i]] === 'object' ? parent[path[i]] : (parent[path[i]] = noProto())
       for (const k of STAT_KEYS_F) if (!hasOwn(parent, k)) parent[k] = false
       for (const k of STAT_KEYS_N) if (!hasOwn(parent, k)) parent[k] = null
-      return stat
-    }
-    const mkActStats = (mod) => {
-      const stat = defStatSi(mkOrStatSi(mod, M_STAT))
-      if (!stat) return null
-      const { root, path } = stat, out = noProto()
-      for (const k of STAT_KEYS_F) out[k] = mkStatTar(root, path, k)
-      for (const k of STAT_KEYS_N) out[k] = mkStatTar(root, path, k)
+      const { root, path: sp } = stat, out = noProto()
+      for (const k of STAT_KEYS_F) out[k] = mkStatTar(root, sp, k)
+      for (const k of STAT_KEYS_N) out[k] = mkStatTar(root, sp, k)
       return out
     }
 
@@ -567,7 +553,7 @@
     }
 
     const noScan = (el) => el && el.hasAttribute && (el.hasAttribute(DM_NO) || el.hasAttribute(DM_NO_SCAN))
-    const noMorph = (el) => el && el.hasAttribute && (el.hasAttribute(DM_NO) || el.hasAttribute(DM_NO_MORPH))
+    const noMorph = (el) => el.hasAttribute(DM_NO) || el.hasAttribute(DM_NO_MORPH)
     const warn = (...a) => console.warn('[dmax]', ...a), logErr = (...a) => console.error('[dmax]', ...a)
     const wireItClone = (node) => {
       const stack = [node]
@@ -595,25 +581,21 @@
       if (!expected(Array.isArray(val), 'dmIt expected array value from:', tr, 'on:', el)) return
       const newLen = val.length, oldLen = itState.count || 0
       if (newLen < oldLen) {
-        for (let i = 0; i < oldLen - newLen; i++) {
-            const node = itState.nodes.pop()
-          if (node && node.parentNode) node.parentNode.removeChild(node)
-        }
+        for (let i = 0; i < oldLen - newLen; i++) { const node = itState.nodes.pop(); if (node && node.parentNode) node.parentNode.removeChild(node) }
         itState.count = newLen
       }
       if (newLen > oldLen) {
-        const frag = document.createDocumentFragment()
-        for (let idx = oldLen; idx < newLen; idx++) {
-          try {
-            const node = tplFirst.cloneNode(true)
-            const idxText = '' + idx
-            rewriteItBindings(node, itemRefBase + '.' + idxText, itemExprBase + '[' + idxText + ']', idxText)
-            frag.appendChild(node)
-            itState.nodes.push(node)
-          } catch { }
+        const count = newLen - oldLen
+        if (count === 1) {
+          const node = tplFirst.cloneNode(true), idxText = '' + oldLen
+          rewriteItBindings(node, itemRefBase + '.' + idxText, itemExprBase + '[' + idxText + ']', idxText)
+          el.appendChild(node), itState.nodes.push(node)
+        } else {
+          const frag = document.createDocumentFragment()
+          for (let idx = oldLen; idx < newLen; idx++) { try { const node = tplFirst.cloneNode(true), idxText = '' + idx; rewriteItBindings(node, itemRefBase + '.' + idxText, itemExprBase + '[' + idxText + ']', idxText); frag.appendChild(node); itState.nodes.push(node) } catch { } }
+          el.appendChild(frag)
         }
-        el.appendChild(frag)
-        for (let i = itState.nodes.length - (newLen - oldLen); i < itState.nodes.length; ++i) wireItClone(itState.nodes[i])
+        for (let i = itState.nodes.length - count; i < itState.nodes.length; ++i) wireItClone(itState.nodes[i])
         itState.count = newLen
       }
     }
@@ -637,21 +619,6 @@
     }
     const getWriteMode = (mods) => { for (const m of mods || NIL) if (m.root === M_REPLACE || m.root === M_MERGE || m.root === M_APPEND || m.root === M_PREPEND || m.root === M_INC || m.root === M_DEC) return m.root; return M_REPLACE }
 
-    const patchMatchingSis = (dKey, payload, resultMode) => {
-      if (!isPlainObj(payload)) return
-      for (const key in payload) if (hasOwn(payload, key)) {
-        const root = kebabToCamel(key)
-        if (!_dm.has(root)) continue
-        setSiAndNotifySubsNDeep(dKey, mkIt(SI, null, root, null), combineActResult(_dm.get(root), payload[key], resultMode))
-      }
-    }
-
-    const applyActPayload = (dKey, resultTa, payload, resultMode) => {
-      if (!resultTa) return
-      const prev = getSiValOrIt(resultTa)
-      setSiAndNotifySubsNDeep(dKey, resultTa, combineActResult(prev, payload, resultMode))
-    }
-
     const permitVal = (m, val, n = m.root, v = resolveMPathVal(m.path)) => n === M_AND ? !!v != !!m.not : n == M_EQ ? val == v : n == M_NE ? val != v : n == M_GT ? +val > +v : n == M_LT ? +val < +v : n == M_GE ? +val >= +v : +val <= +v
     const modsPermitVal = (mods, val) => !mods.push ? permitVal(mods, val) : !mods.some((m) => !permitVal(m, val))
 
@@ -723,7 +690,7 @@
         return sub.fn
       }
       if (sp.io) {
-        if (typeof IntersectionObserver === 'undefined') { warn('IntersectionObserver missing, skip _viewed:', el); return null }
+        if (typeof IntersectionObserver === 'undefined') { warn('no IntersectionObserver:', el); return null }
         const sub = { el, trig: tr, fn: null, siChangeM: null, ev: null, clearId: null }
         sub.fn = applyTrMs(fn, tr, mod, sub)
         const observer = new IntersectionObserver((entries) => {
@@ -739,7 +706,7 @@
       if (sp.init) return applyTrMs(fn, tr, mod)
       const taEl = sp.ta === SP_TA_WIN ? window : sp.ta === SP_TA_DOC ? document : sp.ta === SP_TA_FORM ? (el && el.closest ? el.closest('form') : null) : null
       const ev = tr.path?.[0] || sp.ev || null, readPath = mod.s === MV_PR ? mod.v.length ? mod.v : null : mod.s === MV_ATTRS || mod.s === MV_SEL || mod.s === MV_SEL_ALL ? mod.v : null
-      if (sp.ta === SP_TA_FORM && !taEl) return logErr('Error:', E_FORM_EL, tr, 'on:', el), null
+      if (sp.ta === SP_TA_FORM && !taEl) return logErr(E_FORM_EL, tr, 'on:', el), null
       if (!expected(taEl && ev, 'Expected event target/name in addSpSub:', tr, 'on:', el)) return null
       const opts = mod.f & MF_PREVENT ? false : PASSIVE_LISTENER_OPTS
       const sub = { el, trig: tr, fn: null, siChangeM: null, ev: { taEl, evName: ev, opts }, clearId: null }
@@ -860,16 +827,6 @@
       try { return setSiAndNotifySubs(dKey, tar, val) } finally { syncDepth-- }
     }
 
-    /**
-     * @typedef {(dm?: any, el?: any, trig?: any, trigVal?: any, detail?: any) => void} TriggerHandler
-     */
-
-    /**
-     * @param {TriggerHandler} fn
-     * @param {{ kind: string, root?: string, path?: any, not?: any }} trig
-     * @param {{ el?: any, trig: any, fn?: any, siChangeM?: any, ev?: { taEl: EventTarget, evName: string, opts: any } | null, clearId?: any } | undefined} [removeSub]
-     * @returns {TriggerHandler}
-     */
     const onRaf = (fn) => (typeof requestAnimationFrame === 'function' ? requestAnimationFrame : setTimeout)(fn, 16)
     const getEvVal = (detail, dd = detail && detail.detail) => dd === undefined ? detail : dd && typeof dd === 'object' ? dd.value ?? dd.ms ?? dd : dd
     const applyTrMs = (fn, tr, mod, removeSub) => {
@@ -940,7 +897,7 @@
             if (tr.isSi) writeSiTrs.push([tr, getWriteMode(tr.mods)])
             continue
           }
-          if (!tr.isEv) return logErr('Error:', E_RW_REQ, dKey)
+          if (!tr.isEv) return logErr(E_RW_REQ, dKey)
           const prTa = getTrPrTa(el, dKey, tr, mod, E_RW_EL, E_RW_EV)
           if (!prTa) return
           writePrTrs.push({ tr, mod, w: getWriteMode(tr.mods), taEl: prTa.taEl, readEl: prTa.readEl, ev: prTa.ev, prPath: prTa.prPath, readPath: prTa.readPath, tar: prTa.tar }) }
@@ -959,7 +916,7 @@
               const prTa = tr.isEv ? getTrPrTa(el, dKey, tr, mod, E_RW_EL, E_RW_EV) : null
               if (tr.isEv && !prTa) return
               if ((ran = addNonSiTrSub(el, tr, mod, (dm, _el, syncTr, trigVal, detail) => syncPrTas(dm, syncTr, trigVal, detail), elSubs, ran, prTa)) == null) return
-            } else return logErr('Error: unsupported trigger kind', tr.kind, 'in', dKey)
+            } else return logErr('bad trigger kind', tr.kind, 'in', dKey)
           }
           if (writeSiTrs.length) {
             for (const prTr of writePrTrs) {
@@ -976,19 +933,11 @@
       }
       if (tars.length) {
         const rawFn = fn
+        for (const tar of tars) { tar._m = getWriteMode(tar.mods); tar._j = !!(tar.mods && tar.mods.some((m) => m.root === M_JSOS)); if (!tar.isSi) tar._el = tar.isSp ? tar.root === SP_WIN ? window : tar.root === SP_DOC ? document : tar.root === SP_HISTORY ? window.history : null : tar.root ? getElById(tar.root, dKey) : null }
         fn = (dm, el, trig, trigVal, detail) => {
           const exprVal = rawFn(dm, el, trig, trigVal, detail)
-          let failedTa = null
-          try {
-            for (const tar of tars) {
-              failedTa = tar
-              const mode = getWriteMode(tar.mods)
-              const outVal = tar.mods && tar.mods.some((m) => m.root === M_JSOS) ? dmJsos(exprVal) : exprVal
-              const nextVal = tar.isSi ? combineActResult(getSiVal(tar), outVal, mode) : combineActResult(getElPrVal(tar.isSp ? tar.root === SP_WIN ? window : tar.root === SP_DOC ? document : tar.root === SP_HISTORY ? window.history : null : tar.root ? getElById(tar.root, dKey) : el, tar.path), outVal, mode)
-              if (tar.isSi) setSiAndNotifySubsNDeep(dKey, tar, nextVal)
-              else setPr(el, dKey, tar, nextVal)
-            }
-          } catch (e) { logErr('Error: setting target', failedTa, 'in', dKey, 'ended with ex:', e) }
+          try { for (const tar of tars) { const outVal = tar._j ? dmJsos(exprVal) : exprVal; const nextVal = tar.isSi ? combineActResult(getSiVal(tar), outVal, tar._m) : combineActResult(getElPrVal(tar._el || el, tar.path), outVal, tar._m); if (tar.isSi) setSiAndNotifySubsNDeep(dKey, tar, nextVal); else setPr(el, dKey, tar, nextVal) } }
+          catch (e) { logErr('setting target in', dKey, 'ended with ex:', e) }
         }
       }
       if (!trigs.length) { if (hasExpr) fn(DM, el, null, null, null); return } let ran = false
@@ -999,7 +948,7 @@
           if (!ran && tr.isImmediate != false) ran = true, invokeBoundSub(sub)
           continue
         }
-        if (!tr.isEv && !tr.isSp) return logErr('Error: unsupported trigger kind', tr.kind, 'in', dKey)
+        if (!tr.isEv && !tr.isSp) return logErr('bad trigger kind', tr.kind, 'in', dKey)
         const prTa = tr.isEv && getTrPrTa(el, dKey, tr, mod, E_TRIG_EL, E_TRIG_EV, false)
         if (tr.isEv && !prTa) return
         if ((ran = addNonSiTrSub(el, tr, mod, fn, elSubs, ran, prTa)) == null) return
@@ -1009,10 +958,10 @@
     // - data-m-cl+active+!inactive@is-active="dm.isActive"
     const dmCl = (el, dKey, dVal) => {
       const it = parseCached(dKey), adds = it[ADD], tars = it[TARG], trigs = it[TRIG], globMods = it[MOD]
-      if (!adds.length) return logErr('Error: dmCl requires class names via + syntax in:', dKey)
-      if (!trigs.length) return logErr('Error: dmCl requires at least one trigger in:', dKey)
+      if (!adds.length) return logErr('dmCl needs class names via +:', dKey)
+      if (!trigs.length) return logErr('dmCl needs trigger:', dKey)
       const taEl = getTaFromTars(el, dKey, tars)
-      if (!taEl) return logErr('Error: dmCl target element not found in:', dKey)
+      if (!taEl) return logErr('dmCl target not found:', dKey)
       const fn = dVal ? compileFn(dVal, dKey) : null
       if (dVal && !fn) return
       const elSubs = upsert(_cleanupBoundSubs, el)
@@ -1032,9 +981,9 @@
     // - data-m-sh:.@is-visible="!dm.isVisible"
     const dmSh = (el, dKey, dVal) => {
       const it = parseCached(dKey), tars = it[TARG], trigs = it[TRIG], globMods = it[MOD]
-      if (!trigs.length) return logErr('Error: dmSh requires at least one trigger in:', dKey)
+      if (!trigs.length) return logErr('dmSh needs trigger:', dKey)
       const taEl = getTaFromTars(el, dKey, tars)
-      if (!taEl) return logErr('Error: dmSh target element not found in:', dKey)
+      if (!taEl) return logErr('dmSh target not found:', dKey)
       const inline = (taEl.style && taEl.style.display) || ''
       const computed = getComputedDisplay(taEl)
       const origDisp = inline ? inline : (computed === 'none' || !computed ? 'block' : computed)
@@ -1104,11 +1053,11 @@
         for (const k in tar) if (hasOwn(tar, k)) dmSet(k, tar[k], dKey)
         return tar
       }
-      if (tar?.kind) { if (tar.kind !== SI) return logErr('dmSet signal target expected:', tar, dKey), null }
+      if (tar?.kind) { if (tar.kind !== SI) return logErr('dmSet target expected:', tar, dKey), null }
       else {
-        if (typeof tar !== 'string' || !tar) return logErr('dmSet signal target expected:', tar, dKey), null
+        if (typeof tar !== 'string' || !tar) return logErr('dmSet target expected:', tar, dKey), null
         tar = parseCached(getApiDKey(tar, tar[0] === ':' ? 'si' : 'si:'))[TARG][0]
-        if (tar?.kind !== SI) return logErr('dmSet signal target expected:', tar, dKey), null
+        if (tar?.kind !== SI) return logErr('dmSet target expected:', tar, dKey), null
       }
       setSiAndNotifySubsNDeep(dKey, tar, val)
       return val
@@ -1146,17 +1095,17 @@
     // - data-m-it+#tpl-post@posts
     const dmIt = (el, dKey) => {
       const it = parseCached(dKey), trigs = it[TRIG], adds = it[ADD], globMods = it[MOD]
-      if (!trigs.length) return logErr('Error: dmIt requires a signal trigger in:', dKey)
+      if (!trigs.length) return logErr('dmIt needs signal trigger:', dKey)
       const tr = trigs[0]
-      if (!tr.isSi) return logErr('Error: dmIt trigger must be a signal in:', dKey)
+      if (!tr.isSi) return logErr('dmIt trigger must be signal:', dKey)
       const mod = compileTrMods(tr, globMods)
       let tpl = null
       if (adds.length && adds[0].isEv && adds[0].root) tpl = getElById(adds[0].root, dKey)
       if (!tpl) tpl = el.querySelector('template')
       if (tpl && tpl.parentNode === el) tpl.parentNode.removeChild(tpl)
-      if (!tpl) return logErr('Error: dmIt template not found for:', dKey)
+      if (!tpl) return logErr('dmIt tpl not found:', dKey)
       const tplFirst = tpl.content && tpl.content.firstElementChild
-      if (!tplFirst) return logErr('Error: dmIt template root not found for:', dKey)
+      if (!tplFirst) return logErr('dmIt tpl root not found:', dKey)
       let itState = IT_STATES.get(el)
       if (!itState) IT_STATES.set(el, itState = { nodes: [], count: 0 })
       const itemRefBase = buildItRefBase(tr.root, tr.path)
@@ -1170,7 +1119,7 @@
     const dmAct = (el, dKey, dVal) => {
       const afterData = dKey.slice(DM_KEY.length), methodEnd = indexFirst(afterData, ALL, 0)
       const method = ACT_METHODS[methodEnd >= 0 ? afterData.slice(0, methodEnd) : afterData]
-      if (!method) return logErr('Error: dmAct: unrecognised method prefix in:', dKey)
+      if (!method) return logErr('dmAct bad method:', dKey)
       const it = parseCached(dKey), tars = it[TARG], trigs = it[TRIG], adds = it[ADD], globMods = it[MOD]
       const urlFn = dVal ? compileFn(dVal, dKey) : null
       if (dVal && !urlFn) return
@@ -1240,60 +1189,35 @@
         else if (p && p.isSi) actHdrMods.push([camelToKebab(p.path ? p.path.at(-1) : p.root), null, p])
       }
       const ss = (k, v) => actStats && setSiAndNotifySubsNDeep(dKey, actStats[k], v)
+      const hasAdds = adds.length > 0, hasRouteMods = actRouteMods.length > 0
       const doRequest = async () => {
         const url = urlFn ? urlFn(DM, el, null, null, null) : ''
-        if (!url) return logErr('Error: dmAct: URL is empty in:', dKey)
+        if (!url) return logErr('dmAct empty URL:', dKey)
         ss(M_BUSY, true), ss(M_COMPLETE, false), ss(M_ERR, null), ss(M_CODE, null)
         try {
           const queryParams = noProto(), bodyFields = noProto(), addDst = isGetOrDelete ? queryParams : bodyFields
           if (sendAll) for (const [siName, siVal] of _dm.entries()) bodyFields[siName] = siVal
-          for (const add of adds) {
+          if (hasAdds) for (const add of adds) {
             const val = add.isEv ? getElPrVal(add.taEl || el, add.path) : getSiValOrIt(add)
             if (add.spread) {
               if (val && typeof val === 'object') for (const k in val) if (hasOwn(val, k)) addDst[k] = val[k]
               else addDst.value = val
             } else addDst[add.key] = val
           }
-          for (const [isBody, key, path, ref] of actRouteMods) (isBody ? bodyFields : queryParams)[key] = ref ? getSiValOrIt(ref) : _dm.get(path)
+          if (hasRouteMods) for (const [isBody, key, path, ref] of actRouteMods) (isBody ? bodyFields : queryParams)[key] = ref ? getSiValOrIt(ref) : _dm.get(path)
           let finalUrl = url, hasQ = finalUrl.includes('?')
           for (const k in queryParams) finalUrl += (hasQ ? '&' : '?') + encodeURIComponent(k) + '=' + encodeURIComponent('' + (queryParams[k] ?? '')), hasQ = true
           let hs = ACT_HS_EMPTY, sharedHs = 1
-          if (hdrsPath) {
-            const hdrObj = resolveMPathVal(hdrsPath)
-            if (isPlainObj(hdrObj)) {
-              hs = noProto()
-              sharedHs = 0
-              for (const hk in hdrObj) if (hasOwn(hdrObj, hk)) hs[hsNoKebab ? hk : camelToKebab(hk)] = '' + hdrObj[hk]
-            }
-          }
-          if (baseHs !== ACT_HS_EMPTY) {
-            if (hs === ACT_HS_EMPTY) hs = baseHs
-            else for (const hk in baseHs) if (hasOwn(baseHs, hk)) hs[hk] = baseHs[hk]
-          }
-          if (authPath != null) {
-            const authVal = resolveMPathVal(authPath)
-            if (authVal != null) {
-              if (sharedHs) hs = cloneOwnProps(hs), sharedHs = 0
-              hs[H_AUTHORIZATION] = '' + authVal
-            }
-          }
-          for (const [kebabKey, path, ref] of actHdrMods) {
-            if (sharedHs) hs = cloneOwnProps(hs), sharedHs = 0
-            const v = ref ? getSiValOrIt(ref) : _dm.get(path)
-            hs[kebabKey] = v != null ? '' + v : ''
-          }
-          let bodyCount = 0, firstBodyKey = null
+          if (hdrsPath) { const hdrObj = resolveMPathVal(hdrsPath); if (isPlainObj(hdrObj)) { hs = noProto(); sharedHs = 0; for (const hk in hdrObj) if (hasOwn(hdrObj, hk)) hs[hsNoKebab ? hk : camelToKebab(hk)] = '' + hdrObj[hk] } }
+          if (baseHs !== ACT_HS_EMPTY) { if (hs === ACT_HS_EMPTY) hs = baseHs; else for (const hk in baseHs) if (hasOwn(baseHs, hk)) hs[hk] = baseHs[hk] }
+          if (authPath != null) { const authVal = resolveMPathVal(authPath); if (authVal != null) { if (sharedHs) hs = cloneOwnProps(hs), sharedHs = 0; hs[H_AUTHORIZATION] = '' + authVal } }
+          for (const [kebabKey, path, ref] of actHdrMods) { if (sharedHs) hs = cloneOwnProps(hs), sharedHs = 0; const v = ref ? getSiValOrIt(ref) : _dm.get(path); hs[kebabKey] = v != null ? '' + v : '' }
+          let bodyCount = 0, firstBodyKey = null, body = null
           for (const bk in bodyFields) if (hasOwn(bodyFields, bk)) { if (!bodyCount) firstBodyKey = bk; bodyCount++ }
-          let body = null
           if (bodyCount) {
             const raw = bodyCount === 1 ? bodyFields[firstBodyKey] : bodyFields
-            if (isForm && (isPlainObj(raw) || Array.isArray(raw))) {
-              const params = new URLSearchParams()
-              if (Array.isArray(raw)) for (let i = 0; i < raw.length; i++) params.append('' + i, '' + (raw[i] ?? ''))
-              else for (const k in raw) if (hasOwn(raw, k)) params.append(k, '' + (raw[k] ?? ''))
-              body = params.toString()
-            } else if (isJson || isPlainObj(raw) || Array.isArray(raw)) body = JSON.stringify(raw)
-            else body = '' + raw
+            if (isForm && (isPlainObj(raw) || Array.isArray(raw))) { const params = new URLSearchParams(); if (Array.isArray(raw)) for (let i = 0; i < raw.length; i++) params.append('' + i, '' + (raw[i] ?? '')); else for (const k in raw) if (hasOwn(raw, k)) params.append(k, '' + (raw[k] ?? '')); body = params.toString() }
+            else body = isJson || isPlainObj(raw) || Array.isArray(raw) ? JSON.stringify(raw) : '' + raw
           }
           const ac = typeof AbortController !== 'undefined' ? new AbortController() : null
           activeAbort = ac ? () => ac.abort() : null
@@ -1315,12 +1239,14 @@
             payload = await res.text()
             const mode = htmlDomMod?.root || M_OUTER
             const hp = htmlDomMod && htmlDomMod.path, elTaRoot = hp ? '' : (findFirstKind(tars, EP)?.root ?? '')
-            const selector = hp ? resolveHtmlSelector(hp) : (mode === M_BEFORE || mode === M_AFTER) ? (el.id ? '#' + el.id : '') : (mode === M_APPEND || mode === M_PREPEND) ? (elTaRoot ? '#' + elTaRoot : '') : ''
+            let selector = ''
+            if (hp) { const v = resolveMPathVal(hp); if (typeof v === 'string' && v) { selector = SEL_LEADS.includes(v[0]) ? v : '#' + v } }
+            else selector = (mode === M_BEFORE || mode === M_AFTER) ? (el.id ? '#' + el.id : '') : (mode === M_APPEND || mode === M_PREPEND) ? (elTaRoot ? '#' + elTaRoot : '') : ''
             applyPatchEls({ [SSE_ELS]: payload, selector, mode })
           } else {
             payload = isJsonContentType(ct) ? await res.json() : await res.text()
-            applyActPayload(dKey, resultTa, payload, resultMode)
-            if (patchAll) patchMatchingSis(dKey, payload, resultMode)
+            if (resultTa) { const prev = getSiValOrIt(resultTa); setSiAndNotifySubsNDeep(dKey, resultTa, combineActResult(prev, payload, resultMode)) }
+            if (patchAll && isPlainObj(payload)) for (const key in payload) if (hasOwn(payload, key)) { const root = kebabToCamel(key); if (_dm.has(root)) setSiAndNotifySubsNDeep(dKey, mkIt(SI, null, root, null), combineActResult(_dm.get(root), payload[key], resultMode)) }
           }
           ss(M_BUSY, false), ss(M_COMPLETE, true), ss(M_ERR, null), ss(M_CODE, Number.isFinite(res.status) ? res.status : null), ss(M_ABORT, null)
           activeAbort = null
@@ -1343,7 +1269,7 @@
       for (const tr of trigs) {
         if (!tr.isSi && !tr.isEv && !tr.isSp) return logErr('dmAct bad trigger:', tr.kind, dKey)
         if (tr.isSp) {
-          if (!tr.sp?.act) return logErr('Error: dmAct unsupported SP trigger', tr.root, 'in', dKey)
+          if (!tr.sp?.act) return logErr('dmAct unsupported SP', tr.root, 'in', dKey)
           if (!ran) ran = true, doRequest()
           continue
         }
@@ -1354,9 +1280,9 @@
           continue
         }
         const evTaEl = tr.root ? getElById(tr.root, dKey) : el
-        if (!evTaEl) return logErr('Error: dmAct element not found in trigger:', tr, 'in:', dKey)
+        if (!evTaEl) return logErr('dmAct el not found:', tr, 'in:', dKey)
         const ev = tr.path?.[0] ?? getDefaultEv(evTaEl)
-        if (!ev) return logErr('Error: dmAct event not found in trigger:', tr, 'in:', dKey)
+        if (!ev) return logErr('dmAct event not found:', tr, 'in:', dKey)
         const moddedHandler = addTrSub(el, tr, mod, doRequest, elSubs, evTaEl, ev, null, null, evTaEl)
         if (!ran && tr.isImmediate) ran = true, invokeSub(moddedHandler, null, getElPrVal(evTaEl, null), el, tr)
       }
@@ -1366,7 +1292,7 @@
     const dmActApi = (el, dKey, dVal) => bindAddedSubs(el, (host) => dmAct(host, getApiDKey(dKey, ''), dVal))
     const WC_TMPLS = new WeakSet(), WC_INITS = new WeakSet()
     const defWc = (tpl, name) => {
-      if (!name || name.indexOf('-') < 0) return logErr('dmWc template expects custom-element name value:', name)
+      if (!name || name.indexOf('-') < 0) return logErr('dmWc needs custom-element name:', name)
       if (customElements.get(name) || WC_TMPLS.has(tpl)) return
       WC_TMPLS.add(tpl)
       const props = (tpl.getAttribute(DM_KEY + 'wc-props') || '').match(/[^,\s]+/g) || NIL
@@ -1375,7 +1301,7 @@
       customElements.define(name, WC)
     }
     // - <template data-m-wc="my-card"><article>...</article></template>
-    const dmWc = (el, dKey, dVal) => el.tagName === 'TEMPLATE' ? defWc(el, dVal && dVal.trim()) : logErr('Error: dmWc is template-only; use data-m-ex for WC host props in:', dKey)
+    const dmWc = (el, dKey, dVal) => el.tagName === 'TEMPLATE' ? defWc(el, dVal && dVal.trim()) : logErr('dmWc template-only, use data-m-ex for host props:', dKey)
     const dmNo = () => {}
     globalThis.dmAct = dmActApi
     dataM.si = dmSi; dataM.ex = dmEx; dataM.it = dmIt; dataM.wc = dmWc; dataM.cl = dmCl; dataM.sh = dmSh; dataM.dbg = dmDbg; dataM.no = dmNo
@@ -1400,19 +1326,15 @@
     const getPatchTars = (selector, simpleId = selector && getSimpleIdSelector(selector), el = simpleId && document.getElementById(simpleId)) => !selector ? NIL : simpleId ? el ? [el] : NIL : document.querySelectorAll(selector)
 
     const sameAttrs = (from, to) => {
-      const fromAttrs = from.attributes, toAttrs = to.attributes, len = toAttrs.length
-      if (fromAttrs.length !== len) return false
-      for (let i = 0; i < len; i++) {
-        const fromAttr = fromAttrs[i], toAttr = toAttrs[i]
-        if (fromAttr.name !== toAttr.name || fromAttr.value !== toAttr.value) return false
-      }
+      const fa = from.attributes, ta = to.attributes, len = ta.length
+      if (fa.length !== len) return false
+      for (let i = 0; i < len; i++) if (fa[i].name !== ta[i].name || fa[i].value !== ta[i].value) return false
       return true
     }
 
-    // Sync attributes from to onto from.
+    // Sync attributes from to onto from. Called only when attrs differ.
     const updateAttrs = (from, to) => {
       const toAttrs = to.attributes, fromAttrs = from.attributes, tl = toAttrs.length, fl = fromAttrs.length
-      if (!fl && !tl) return
       if (fl === tl) {
         let same = true, re = false
         for (let i = 0; i < tl; i++) {
@@ -1430,14 +1352,8 @@
           if (same) return
         }
       }
-      if (!tl) {
-        for (let i = fl - 1; i >= 0; i--) from.removeAttribute(fromAttrs[i].name)
-        return
-      }
-      for (let i = 0; i < tl; i++) {
-        const ta = toAttrs[i], fa = fromAttrs.getNamedItem(ta.name)
-        if (!fa || fa.value !== ta.value) from.setAttribute(ta.name, ta.value)
-      }
+      if (!tl) { for (let i = fl - 1; i >= 0; i--) from.removeAttribute(fromAttrs[i].name); return }
+      for (let i = 0; i < tl; i++) { const ta = toAttrs[i]; if (fromAttrs.getNamedItem(ta.name)?.value !== ta.value) from.setAttribute(ta.name, ta.value) }
       for (let i = fl - 1; i >= 0; i--) if (!to.hasAttribute(fromAttrs[i].name)) from.removeAttribute(fromAttrs[i].name)
     }
 
@@ -1495,7 +1411,7 @@
     }
 
     let _morphActiveEl = null
-    const doneMorph = (root) => root && (_morphActiveEl = null)
+    const _endMorph = (root) => root && (_morphActiveEl = null)
     // Update from in place without disturbing matched-node listeners or cleanup state.
     // Preserve caret, selection, and scroll across streamed updates.
     const morph = (from, to) => {
@@ -1503,36 +1419,33 @@
       if (root) _morphActiveEl = document.activeElement
       if (from.nodeType === 3 && to.nodeType === 3) {
         if (from.nodeValue !== to.nodeValue) from.nodeValue = to.nodeValue
-        return doneMorph(root)
+        return _endMorph(root)
       }
-      if (from.nodeType !== ELEMENT_NODE || to.nodeType !== ELEMENT_NODE || noMorph(from) || noMorph(to)) return doneMorph(root)
+      if (from.nodeType !== ELEMENT_NODE || to.nodeType !== ELEMENT_NODE || noMorph(from) || noMorph(to)) return _endMorph(root)
       if (from.tagName !== to.tagName) {
         if (from.parentNode) from.parentNode.replaceChild(to.cloneNode(true), from)
-        return doneMorph(root)
+        return _endMorph(root)
       }
       const fromFirst = from.firstChild, toFirst = to.firstChild, textOnly = fromFirst && toFirst && !fromFirst.nextSibling && !toFirst.nextSibling && fromFirst.nodeType === TEXT_NODE && toFirst.nodeType === TEXT_NODE
-      if (sameAttrs(from, to) && (!fromFirst && !toFirst || textOnly && fromFirst.nodeValue === toFirst.nodeValue)) return doneMorph(root)
-      const tag = from.tagName, isFocused = from === _morphActiveEl
+      const attrsMatch = sameAttrs(from, to)
+      if (attrsMatch && (!fromFirst && !toFirst || textOnly && fromFirst.nodeValue === toFirst.nodeValue)) return _endMorph(root)
+      if (textOnly && attrsMatch && from !== _morphActiveEl) { fromFirst.nodeValue = toFirst.nodeValue; return _endMorph(root) }
+      const isFocused = from === _morphActiveEl
       let selStart = -1, selEnd = -1, selDir = 'none', selVal = null, selIdx = -1
-      if (isFocused && (tag === 'INPUT' || tag === 'TEXTAREA')) {
-        try { selStart = from.selectionStart; selEnd = from.selectionEnd; selDir = from.selectionDirection || 'none' } catch (_) {}
-      } else if (isFocused && tag === 'SELECT') selVal = from.value, selIdx = from.selectedIndex
-      const scrollTop = from.scrollTop, scrollLeft = from.scrollLeft, keepScroll = scrollTop || scrollLeft
-      updateAttrs(from, to)
-      if (textOnly) {
-        if (fromFirst.nodeValue !== toFirst.nodeValue) fromFirst.nodeValue = toFirst.nodeValue
-      } else if (fromFirst || toFirst) morphChildren(from, to)
-      if (keepScroll) {
-        if (from.scrollTop !== scrollTop) from.scrollTop = scrollTop
-        if (from.scrollLeft !== scrollLeft) from.scrollLeft = scrollLeft
-      }
-      if (isFocused && selStart >= 0) {
-        try { from.setSelectionRange(selStart, selEnd, selDir) } catch (_) {}
-      } else if (isFocused && tag === 'SELECT') {
-        from.value = selVal
-        if (from.value !== selVal && selIdx >= 0 && selIdx < from.options.length) from.selectedIndex = selIdx
-      }
-      doneMorph(root)
+      if (isFocused) {
+        const tag = from.tagName
+        if (tag === 'INPUT' || tag === 'TEXTAREA') {
+          try { selStart = from.selectionStart; selEnd = from.selectionEnd; selDir = from.selectionDirection || 'none' } catch (_) {}
+        } else if (tag === 'SELECT') selVal = from.value, selIdx = from.selectedIndex
+      }
+      const scrollTop = from.scrollTop, scrollLeft = from.scrollLeft
+      if (!attrsMatch) updateAttrs(from, to)
+      if (textOnly) { if (fromFirst.nodeValue !== toFirst.nodeValue) fromFirst.nodeValue = toFirst.nodeValue }
+      else if (fromFirst || toFirst) morphChildren(from, to)
+      if (scrollTop || scrollLeft) { if (from.scrollTop !== scrollTop) from.scrollTop = scrollTop; if (from.scrollLeft !== scrollLeft) from.scrollLeft = scrollLeft }
+      if (isFocused && selStart >= 0) { try { from.setSelectionRange(selStart, selEnd, selDir) } catch (_) {} }
+      else if (isFocused && selVal !== null) { from.value = selVal; if (from.value !== selVal && selIdx >= 0 && selIdx < from.options.length) from.selectedIndex = selIdx }
+      _endMorph(root)
     }
 
     const JSON_MERGE_DELETE = Symbol('json_merge_delete')
@@ -1559,13 +1472,6 @@
       return root ? Array.from(root.children) : []
     }
 
-    const insertFragRelative = (taEl, srcEls, mode) => {
-      if (!taEl || !srcEls || !srcEls.length) return
-      const frag = document.createDocumentFragment(), before = mode === M_PREPEND ? taEl.firstChild || null : mode === M_BEFORE ? taEl : taEl.nextSibling
-      for (const src of srcEls) frag.appendChild(src.cloneNode(true))
-      if (mode === M_APPEND) taEl.appendChild(frag)
-      else (mode === M_PREPEND ? taEl : taEl.parentNode)?.insertBefore(frag, before)
-    }
     const applyPatchPair = (taEl, srcEl, mode, reuse = false) => {
       if (!taEl || !srcEl) return
       if (mode === M_REPLACE) taEl.replaceWith(reuse ? srcEl : srcEl.cloneNode(true))
@@ -1587,12 +1493,16 @@
       const srcEls = parseSseEls(rawEls, ns)
       if (mode === M_REMOVE) {
         if (sel) for (const t of document.querySelectorAll(sel)) t.remove()
-        else for (const src of srcEls) src.id ? document.getElementById(src.id)?.remove() : warn('patch-elements remove needs ids without selector')
+        else for (const src of srcEls) src.id ? document.getElementById(src.id)?.remove() : warn('patch remove needs ids without selector')
         return
       }
       if (mode === M_APPEND || mode === M_PREPEND || mode === M_BEFORE || mode === M_AFTER) {
         if (!sel || !srcEls.length) return
-        for (const t of document.querySelectorAll(sel)) insertFragRelative(t, srcEls, mode)
+        for (const t of document.querySelectorAll(sel)) {
+          const frag = document.createDocumentFragment(), before = mode === M_PREPEND ? t.firstChild || null : mode === M_BEFORE ? t : t.nextSibling
+          for (const src of srcEls) frag.appendChild(src.cloneNode(true))
+          if (mode === M_APPEND) t.appendChild(frag); else (mode === M_PREPEND ? t : t.parentNode)?.insertBefore(frag, before)
+        }
         return
       }
 
@@ -1611,7 +1521,7 @@
       if (!srcEls.length) return
       for (const src of srcEls) {
         if (src.id) applyPatchPair(document.getElementById(src.id), src, mode, true)
-        else warn('patch-elements needs ids without selector')
+        else warn('patch needs ids without selector')
       }
     }
 
@@ -1631,7 +1541,7 @@
       const raw = args[SSE_SIS]
       if (!raw) return
       let patchObj = null
-      try { patchObj = JSON.parse(raw) } catch (_) { return logErr('Error: patch sigs in', dKey, 'expect JSON but found invalid format') }
+      try { patchObj = JSON.parse(raw) } catch (_) { return logErr('patch sigs in', dKey, 'expect JSON but found invalid format') }
       if (!isPlainObj(patchObj)) return
       const onlyIfMissing = (args.onlyIfMissing || '').toLowerCase() === 'true'
       for (const root in patchObj) if (hasOwn(patchObj, root)) {
diff --git a/package.json b/package.json
index 02e16b0..4969610 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "jsdom": "^27.4.0",
-    "terser": "^5.47.1"
+    "terser": "^5.48.0"
   },
   "scripts": {
     "vendor:libs": "node tools/vendor-libs.js",
diff --git a/tests/dmax.size.limits.json b/tests/dmax.size.limits.json
index f6d6f98..cc01aa3 100644
--- a/tests/dmax.size.limits.json
+++ b/tests/dmax.size.limits.json
@@ -1,4 +1,4 @@
 {
-  "lines": 1755,
-  "bytes": 89998
+  "lines": 1665,
+  "bytes": 88035
 }
diff --git a/tests/fuzz.deterministic.js b/tests/fuzz.deterministic.js
index 224dbf9..0a2ffd8 100644
--- a/tests/fuzz.deterministic.js
+++ b/tests/fuzz.deterministic.js
@@ -154,6 +154,12 @@ function* generateDataSubCombinations() {
   yield { attr: 'data-m-ex@posts^with_shape', valid: true, category: 'with-shape-sub' }
   yield { attr: 'data-m-ex@items[0]^with_shape', valid: true, category: 'indexed-shape-sub' }
   yield { attr: 'data-m-ex:user^merge@ui', valid: true, category: 'target-merge' }
+  yield {
+    attr: 'data-m-ex:.text-content^jsos@foo', valid: true, category: 'target-jsos', html: '<div id="fuzz-test" data-m-ex:.text-content^jsos@foo></div>', exercise: async ({ document }) => {
+      const text = document.getElementById('fuzz-test').textContent
+      if (text !== '0') throw new Error('expected ^jsos to stringify signal value, got: ' + text)
+    }
+  }
   yield {
     attr: 'data-m-ex:.text-content^append@foo', valid: true, category: 'target-append', html: '<div id="fuzz-test" data-m-ex:.text-content^append@foo>old</div>', exercise: async ({ document }) => {
       if (document.getElementById('fuzz-test').textContent !== 'old0') throw new Error('expected ^append string write')
@@ -190,7 +196,7 @@ function* generateDataSubCombinations() {
   for (const special of SPECIAL_EVENTS)
     yield { attr: `data-m-ex:foo@${special}`, valid: true, category: 'special-trigger' }
   for (const special of SPECIAL_EVENTS_WITH_IO)
-    yield { attr: `data-m-ex:foo@${special}`, valid: false, category: 'special-trigger-no-io', expectedLog: 'warn', logPattern: 'IntersectionObserver missing, skip _viewed' }
+    yield { attr: `data-m-ex:foo@${special}`, valid: false, category: 'special-trigger-no-io', expectedLog: 'warn', logPattern: 'no IntersectionObserver' }
 
   yield { attr: 'data-m-ex+extra@foo', valid: false, category: 'unsupported-add-warning', expectedLog: 'warn', logPattern: 'targets/triggers/mods only' }
 
@@ -241,14 +247,14 @@ function* generateDataClassCombinations() {
   yield { attr: 'data-m-cl:+active@is-active', valid: true, category: 'single-class' };
   yield { attr: 'data-m-cl+active+!inactive@is-active', valid: true, category: 'inverse-class' };
   yield { attr: 'data-m-cl:+foo:+bar@baz', valid: true, category: 'multi-class' };
-  yield { attr: 'data-m-cl:', valid: false, category: 'missing-class-error', expectedLog: 'warnOrError', logPattern: 'dmCl requires class names via + syntax' };
+  yield { attr: 'data-m-cl:', valid: false, category: 'missing-class-error', expectedLog: 'warnOrError', logPattern: 'dmCl needs class names via +' };
 }
 
 function* generateDataDispCombinations() {
   // Valid
   yield { attr: 'data-m-sh@is-visible', valid: true, category: 'display-signal' };
   yield { attr: 'data-m-sh@flag', valid: true, category: 'display-flag' };
-  yield { attr: 'data-m-sh:', valid: false, category: 'missing-trigger-error', expectedLog: 'warnOrError', logPattern: 'dmSh requires at least one trigger' };
+  yield { attr: 'data-m-sh:', valid: false, category: 'missing-trigger-error', expectedLog: 'warnOrError', logPattern: 'dmSh needs trigger' };
 }
 
 function* generateDataDumpCombinations() {
@@ -260,7 +266,10 @@ function* generateDataDumpCombinations() {
   // Valid - dotted signal paths
   yield { attr: 'data-m-it+#tpl-post@user.posts', valid: true, category: 'dotted-signal' };
   yield { attr: 'data-m-it+#tpl-item@app.data.items', valid: true, category: 'deep-dotted' };
-  yield { attr: 'data-m-it+#tpl-post', valid: false, category: 'missing-trigger-error', expectedLog: 'warnOrError', logPattern: 'dmIt requires a signal trigger' };
+
+  // Valid - incremental growth (exercises single-item fast path)
+  yield { attr: 'data-m-it+#tpl-item@items', valid: true, category: 'single-item-growth' };
+  yield { attr: 'data-m-it+#tpl-post', valid: false, category: 'missing-trigger-error', expectedLog: 'warnOrError', logPattern: 'dmIt needs signal trigger' };
 }
 
 function* generateDataActionCombinations() {
diff --git a/tools/minify-dmax.js b/tools/minify-dmax.js
index 0cf112c..93e05d4 100644
--- a/tools/minify-dmax.js
+++ b/tools/minify-dmax.js
@@ -16,12 +16,26 @@ const OUT_BR = path.join(ROOT, 'dist', 'dmax.min.js.br')
   const src = fs.readFileSync(SRC, 'utf8')
   const out = await minify(src, {
     compress: {
-      passes: 2,
+      passes: 4,
       unsafe: true,
       unsafe_math: true,
-      pure_getters: true
+      pure_getters: true,
+      toplevel: true,
+      reduce_vars: true,
+      collapse_vars: true,
+      inline: 3,
+      join_vars: true,
+      hoist_funs: true,
+      dead_code: true,
+      sequences: true,
+      conditionals: true,
+      comparisons: true,
+      booleans: true,
+      loops: true,
+      if_return: true,
+      keep_fargs: false,
     },
-    mangle: true,
+    mangle: { toplevel: true },
     format: { comments: false }
   })
   if (!out.code) throw new Error('Minifier returned empty output')