diff --git a/protovis-d3.3.js b/protovis-d3.3.js
index 5529fcde..acd4f608 100644
--- a/protovis-d3.3.js
+++ b/protovis-d3.3.js
@@ -11,7 +11,7 @@
  * the license for the specific language governing your rights and limitations.
  */
  /*! Copyright 2010 Stanford Visualization Group, Mike Bostock, BSD license. */
- /*! b3bcf01fff70f1fcad2464fa4a700c22f9ed4596 */
+ /*! 0a846e02116638f4d7f3c88a223ee1ae23f0cb3f */
 /**
  * @class The built-in Array class.
  * @name Array
@@ -11692,17 +11692,25 @@ pv.Mark.prototype.setPropertyValue = function(name, v, isDef, cast, chain, tag){
         id:    pv.id(),
         value: v,
         type:  type,
-        tag:   tag
+        tag:   tag,
+        proto: null,
+        root:  null,
+        
+        // Used in #bind to connect the property chains 
+        // found along a mark's proto chain.
+        _proto: null
     };
+    
+    p.root = p;
 
-    var specified = propertiesMap[name];
+    var existing = propertiesMap[name];
 
     propertiesMap[name] = p;
 
-    if(specified) {
+    if(existing) {
       // Find it and remove it
       for(var i = 0, P = properties.length; i < P; i++) {
-        if(properties[i] === specified) {
+        if(properties[i] === existing) {
           properties.splice(i, 1);
           break;
         }
@@ -11711,9 +11719,9 @@ pv.Mark.prototype.setPropertyValue = function(name, v, isDef, cast, chain, tag){
 
     properties.push(p);
 
-    if(chain && specified && type === 3) { // is a prop fun
-      p.proto = specified;
-      p.root  = specified.root || specified;
+    if(chain && existing && type === 3) { // is a prop fun
+      p.proto = existing;
+      p.root  = existing.root;
     }
 
     return p;
@@ -12482,6 +12490,7 @@ pv.Mark.prototype.renderCore = function() {
  */
 pv.Mark.prototype.bind = function() {
   var seen = {},
+      root = {},
       data,
 
       // Required props (no defs)
@@ -12525,20 +12534,23 @@ pv.Mark.prototype.bind = function() {
         var pLeaf = seen[name];
         if(!pLeaf) {
           seen[name] = p;
+          root[name] = p.root;
+          // Reset, from a previous binding
+          p.root._proto = null;
           switch(name) {
             case 'data': data = p; break;
             case 'visible': case 'id': required.push(p); break;
             default: types[p.type].push(p); break;
           }
-        } else if(pLeaf.type === 3) { // prop/fun
-          // Chain properties
-          //
-          // seen[name]-> (leaf).proto-> (B).proto-> (C).proto-> (root)
-          //                    .root-------------------------------^
-          var pRoot  = pLeaf.root;
-          pLeaf.root = p;
-          if(!pRoot)            { pLeaf.proto = p; }
-          else if(!pRoot.proto) { pRoot.proto = p; }
+        } else {
+          var pRoot = root[name];
+          if(pRoot.type === 3) { // prop/fun
+            // Chain property chains of pRoot and p
+            pRoot._proto = p;
+            pRoot = root[name] = p.root;
+            // Reset, from a previous binding
+            pRoot._proto = null;
+          }
         }
       }
     } while((mark = mark.proto));
@@ -12781,7 +12793,7 @@ pv.Mark.prototype.buildInstance = function(s) {
 
     // 3 - prop - fun
     function(p) {
-      _protoProp = p.proto;
+      _protoProp = p.proto || p._proto;
       return p.value.apply(this, _stack);
     }
   ];
@@ -22675,12 +22687,11 @@ pv.Behavior.point = function(keyArgs) {
 
                 // Initialize panel.
                 // Unpoint when the mouse leaves the pointing panel.
-                if(!pointingPanel && this.type === 'panel') {
-
+                if(pointingPanel) {
+                    ;
+                } else if(this.type === 'panel') {
                     pointingPanel = this;
-                    pointingPanel.event('mouseout', function() {
-                        mouseout.call(pointingPanel.scene.$g);
-                    });
+                    this.event('mouseout', function() { mouseout.call(this.scene.$g); });
 
                     if(stealClick) pointingPanel.addEventInterceptor('click', eventInterceptor);
                 } else {
diff --git a/protovis-r3.3.js b/protovis-r3.3.js
index b5890e89..704783ca 100644
--- a/protovis-r3.3.js
+++ b/protovis-r3.3.js
@@ -11,7 +11,7 @@
  * the license for the specific language governing your rights and limitations.
  */
  /*! Copyright 2010 Stanford Visualization Group, Mike Bostock, BSD license. */
- /*! b3bcf01 */
+ /*! 0a846e0 */
 var a;if(!Array.prototype.map)Array.prototype.map=function(b,c){for(var e=this.length,d=new Array(e),f=0;f<e;f++)if(f in this)d[f]=b.call(c,this[f],f,this);return d};if(!Array.prototype.filter)Array.prototype.filter=function(b,c){for(var e=this.length,d=[],f=0;f<e;f++)if(f in this){var g=this[f];b.call(c,g,f,this)&&d.push(g)}return d};if(!Array.prototype.forEach)Array.prototype.forEach=function(b,c){for(var e=this.length>>>0,d=0;d<e;d++)d in this&&b.call(c,this[d],d,this)};
 if(!Array.prototype.reduce)Array.prototype.reduce=function(b,c){var e=this.length;if(!e&&arguments.length==1)throw new Error("reduce: empty array, no initial value");var d=0;if(arguments.length<2)for(;;){if(d in this){c=this[d++];break}if(++d>=e)throw new Error("reduce: no values, no initial value");}for(;d<e;d++)if(d in this)c=b(c,this[d],d,this);return c};
 if(!Array.prototype.indexOf)Array.prototype.indexOf=function(b,c){var e=this.length>>>0;for(c=!isFinite(c)||c<0?0:c>this.length?this.length:c;c<e;c++)if(this[c]===b)return c;return-1};if(!Date.now)Date.now=function(){return+new Date};if(!Object.create)Object.create=function(b){function c(){}c.prototype=b;return new c};var pv={};pv.version={major:3,minor:3};pv.identity=function(b){return b};pv.index=function(){return this.index};pv.child=function(){return this.childIndex};pv.parent=function(){return this.parent.index};
@@ -248,7 +248,7 @@ pv.Mark=function(){this.$properties=[];this.$propertiesMap={};this.$handlers={}}
 pv.Mark.prototype.localProperty=function(b,c){if(!this.hasOwnProperty("properties"))this.properties=pv.extend(this.properties);this.properties[b]=true;var e=pv.Mark.cast[b];if(c)pv.Mark.cast[b]=e=c;this.propertyMethod(b,false,e);return this};pv.Mark.prototype.def=function(b,c){this.propertyMethod(b,true);return this[b](arguments.length>1?c:null)};
 pv.Mark.prototype.propertyMethod=function(b,c,e){e||(e=pv.Mark.cast[b]);this[b]=function(d,f){if(c&&this.scene){var g=this.scene.defs;if(arguments.length){g[b]={id:d==null?0:pv.id(),value:d!=null&&e?e(d):d};return this}return(g=g[b])?g.value:null}if(arguments.length){this.setPropertyValue(b,d,c,e,false,f);return this}g=this.instance();if(pv.propBuildMark===this&&pv.propBuilt[b]!==1){pv.propBuilt[b]=1;return g[b]=this.evalProperty(this.binds.properties[b])}return g[b]}};
 pv.Mark.funPropertyCaller=function(b,c){function e(){var f=b.apply(this,d);return f!=null?c(f):f}var d=pv.Mark.stack;return e};
-pv.Mark.prototype.setPropertyValue=function(b,c,e,d,f,g){e=!e<<1|typeof c==="function";if(e&1&&d)c=pv.Mark.funPropertyCaller(c,d);else if(c!=null&&d)c=d(c);var h=this.$propertiesMap;d=this.$properties;c={name:b,id:pv.id(),value:c,type:e,tag:g};g=h[b];h[b]=c;if(g){b=0;for(h=d.length;b<h;b++)if(d[b]===g){d.splice(b,1);break}}d.push(c);if(f&&g&&e===3){c.proto=g;c.root=g.root||g}return c};
+pv.Mark.prototype.setPropertyValue=function(b,c,e,d,f,g){e=!e<<1|typeof c==="function";if(e&1&&d)c=pv.Mark.funPropertyCaller(c,d);else if(c!=null&&d)c=d(c);var h=this.$propertiesMap;d=this.$properties;c={name:b,id:pv.id(),value:c,type:e,tag:g,proto:null,root:null,_proto:null};c.root=c;g=h[b];h[b]=c;if(g){b=0;for(h=d.length;b<h;b++)if(d[b]===g){d.splice(b,1);break}}d.push(c);if(f&&g&&e===3){c.proto=g;c.root=g.root}return c};
 pv.Mark.prototype.intercept=function(b,c,e){this.setPropertyValue(b,c,false,pv.get(e,"noCast")?null:pv.Mark.cast[b],true,pv.get(e,"tag"));return this};pv.Mark.prototype.propertyValue=function(b,c){var e=this.$propertiesMap[b];if(e)return e.value;if(c){if(this.proto){c=this.proto._propertyValueRecursive(b);if(c!==undefined)return c}return this.defaults._propertyValueRecursive(b)}};pv.Mark.prototype._propertyValueRecursive=function(b){var c=this.$propertiesMap[b];if(c)return c.value;if(this.proto)return this.proto._propertyValueRecursive(b)};
 pv.Mark.stack=[];pv.Mark.prototype.property("data").property("visible",Boolean).property("css",Object).property("svg",Object).property("left",Number).property("right",Number).property("top",Number).property("bottom",Number).property("cursor",String).property("title",String).property("reverse",Boolean).property("antialias",Boolean).property("events",pv.stringLowerCase).property("id",String);a=pv.Mark.prototype;a.childIndex=-1;a.index=-1;a.scale=1;a._zOrder=0;a.defaults=(new pv.Mark).data(function(b){return[b]}).visible(true).antialias(true).events("painted");
 a.extend=function(b){this.proto=b;this.target=b.target;return this};a.add=function(b){return this.parent.add(b).extend(this)};a.zOrder=function(b){if(!arguments.length)return this._zOrder;b=+b||0;if(this._zOrder!==b){var c=this.parent;c&&this._zOrder!==0&&c._zOrderChildCount--;this._zOrder=b;c&&this._zOrder!==0&&c._zOrderChildCount++}return this};
@@ -259,12 +259,12 @@ a.instances=function(b){for(var c=this,e=[],d;!(d=c.scene);){e.push({index:b.par
 a.cousin=function(){var b=this.parent;return(b=b&&b.sibling())&&b.children?b.children[this.childIndex][this.index]:null};a._renderId=0;a.renderId=function(){return this.root._renderId};a.render=function(){var b=this.root;if(this.parent&&!b.scene)b.render();else{b._renderId++;this.renderCore()}};
 a.renderCore=function(){function b(k,m,o){k.scale=o;if(m<i){var q=m>=d.length;q&&d.unshift(null);if(k.hasOwnProperty("index"))c(k,m,o,q);else{for(var l=0,n=k.scene.length;l<n;l++){k.index=l;c(k,m,o,q)}delete k.index}q&&d.shift()}else{k.build();pv.Scene.scale=o;pv.Scene.updateAll(k.scene)}delete k.scale}function c(k,m,o,q){var l=k.scene[k.index];if(l.visible){var n=k.children,p=l.children,s=g[m],u=n[s];u.scene||s++;for(k=0;k<s;k++)n[k].scene=p[k];if(q)d[0]=l.data;b(u,m+1,o*l.transform.k);for(k=0;k<
 s;k++)n[k].scene=undefined}}for(var e=this.parent,d=pv.Mark.stack,f=d.length,g=[],h=this;h.parent;h=h.parent)g.unshift(h.childIndex);var i=g.length;for(this.bind();e&&!e.hasOwnProperty("index");)e=e.parent;try{this.context(e?e.scene:undefined,e?e.index:-1,function(){b(this.root,0,1)})}catch(j){if(d.length>f)d.length=f;throw j;}};
-a.bind=function(){function b(m){do for(var o=m.$properties,q=o.length;q--;){var l=o[q],n=l.name,p=c[n];if(p){if(p.type===3){n=p.root;p.root=l;if(n){if(!n.proto)n.proto=l}else p.proto=l}}else{c[n]=l;switch(n){case "data":e=l;break;case "visible":case "id":d.push(l);break;default:f[l.type].push(l);break}}}while(m=m.proto)}var c={},e,d=[],f=[[],[],[],[]];b(this);b(this.defaults);var g=f[0],h=f[1].reverse(),i=f[2];f[3].reverse();var j=this;do for(var k in j.properties)k in c||i.push(c[k]={name:k,type:2,
-value:null});while(j=j.proto);if(g.length||h.length){g=g.concat(h);h=0;for(i=g.length;h<i;h++)this.propertyMethod(g[h].name,true)}else g=[];this.binds={properties:c,data:e,defs:g,required:d,optional:pv.blend(f)}};
+a.bind=function(){function b(o){do for(var q=o.$properties,l=q.length;l--;){var n=q[l],p=n.name;if(c[p]){var s=e[p];if(s.type===3){s._proto=n;s=e[p]=n.root;s._proto=null}}else{c[p]=n;e[p]=n.root;n.root._proto=null;switch(p){case "data":d=n;break;case "visible":case "id":f.push(n);break;default:g[n.type].push(n);break}}}while(o=o.proto)}var c={},e={},d,f=[],g=[[],[],[],[]];b(this);b(this.defaults);var h=g[0],i=g[1].reverse(),j=g[2];g[3].reverse();var k=this;do for(var m in k.properties)m in c||j.push(c[m]=
+{name:m,type:2,value:null});while(k=k.proto);if(h.length||i.length){h=h.concat(i);i=0;for(j=h.length;i<j;i++)this.propertyMethod(h[i].name,true)}else h=[];this.binds={properties:c,data:d,defs:h,required:f,optional:pv.blend(g)}};
 a.build=function(){var b=pv.Mark.stack,c=this.scene;if(!c){c=this.scene=[];c.mark=this;c.type=this.type;c.childIndex=this.childIndex;var e=this.parent;if(e){c.parent=e.scene;c.parentIndex=e.index}}if(this.target)c.target=this.target.instances(c);e=this.binds.defs;if(e.length)for(var d=c.defs||(c.defs={}),f=0,g=e.length;f<g;f++){var h=e[f],i=d[h.name];if(!i||h.id>i.id)d[h.name]={id:0,value:h.type&1?h.value.apply(this,b):h.value}}e=this.evalProperty(this.binds.data);d=e.length;if(c.length=d){g=pv.Mark.prototype;
 b.unshift(null);h=pv.propBuildMark;i=pv.propBuilt;pv.propBuildMark=this;try{for(f=0;f<d;f++){g.index=this.index=f;pv.propBuilt={};var j=c[f];if(j)j._state&&delete j._state;else j=c[f]={};j.data=b[0]=e[f];this.preBuildInstance(j);this.buildInstance(j)}}finally{g.index=-1;delete this.index;b.shift();pv.propBuildMark=h;pv.propBuilt=i}}return this};a.instanceState=function(b){b||(b=this.instance());return b?b._state||(b._state={}):null};a.preBuildInstance=function(){};
 a.buildInstance=function(b){this.buildProperties(b,this.binds.required);if(b.visible){this.buildProperties(b,this.binds.optional);this.buildImplied(b)}};
-(function(){var b,c=pv.Mark.stack,e=[function(d){return this.scene.defs[d.name].value},null,function(d){return d.value},function(d){b=d.proto;return d.value.apply(this,c)}];e[1]=e[0];pv.Mark.prototype.buildProperties=function(d,f){var g=pv.propBuilt,h=!g;if(h){pv.propBuildMark=this;pv.propBuilt=g={}}for(var i=b,j=0,k=f.length;j<k;j++){var m=f[j],o=m.name;if(!(o in g)){g[o]=1;d[o]=e[m.type].call(this,m)}}b=i;if(h)pv.propBuildMark=pv.propBuilt=null};pv.Mark.prototype.evalProperty=function(d){var f=
+(function(){var b,c=pv.Mark.stack,e=[function(d){return this.scene.defs[d.name].value},null,function(d){return d.value},function(d){b=d.proto||d._proto;return d.value.apply(this,c)}];e[1]=e[0];pv.Mark.prototype.buildProperties=function(d,f){var g=pv.propBuilt,h=!g;if(h){pv.propBuildMark=this;pv.propBuilt=g={}}for(var i=b,j=0,k=f.length;j<k;j++){var m=f[j],o=m.name;if(!(o in g)){g[o]=1;d[o]=e[m.type].call(this,m)}}b=i;if(h)pv.propBuildMark=pv.propBuilt=null};pv.Mark.prototype.evalProperty=function(d){var f=
 b;d=e[d.type].call(this,d);b=f;return d};pv.Mark.prototype.evalInPropertyContext=function(d,f){var g=b;b=f;d=d.apply(this,c);b=g;return d};pv.Mark.prototype.delegate=function(d,f){if(b&&(!f||b.tag===f)){f=this.evalProperty(b);if(f!==undefined)return f}return d};pv.Mark.prototype.delegateExcept=function(d,f){if(b&&(!f||b.tag!==f)){f=this.evalProperty(b);if(f!==undefined)return f}return d};pv.Mark.prototype.hasDelegate=function(d){return!!b&&(!d||b.tag===d)}})();a=pv.Mark.prototype;
 a.buildImplied=function(b){var c=b.left,e=b.right,d=b.top,f=b.bottom,g=this.properties,h=g.width?b.width:0,i=g.height?b.height:0,j,k;if(h==null||e==null||c==null){j=this.parent&&this.parent.instance();k=true;var m=j?j.width:h+c+e;if(h==null)h=m-(e=e||0)-(c=c||0);else if(e==null)if(c==null)c=e=(m-h)/2;else e=m-h-c;else c=m-h-e}if(i==null||f==null||d==null){k||(j=this.parent&&this.parent.instance());j=j?j.height:i+d+f;if(i==null)i=j-(d=d||0)-(f=f||0);else if(f==null)f=d==null?(d=(j-i)/2):j-i-d;else d=
 j-i-f}b.left=c;b.right=e;b.top=d;b.bottom=f;if(g.width)b.width=h;if(g.height)b.height=i;if(g.textStyle&&!b.textStyle)b.textStyle=pv.FillStyle.transparent;if(g.fillStyle&&!b.fillStyle)b.fillStyle=pv.FillStyle.transparent;if(g.strokeStyle&&!b.strokeStyle)b.strokeStyle=pv.FillStyle.transparent};
@@ -436,7 +436,7 @@ pv.Behavior.point=function(b){function c(t,r){if(t.visible)for(var w=t.children.
 delete w.index}}return y}function d(t,r){r=t[r];if(!r.visible)return 0;if(!o)return 1;t=t.mark.properties;if(!t.fillStyle&&!t.strokeStyle)return 1;t=Math.max(r.fillStyle?r.fillStyle.opacity:0,r.strokeStyle?r.strokeStyle.opacity:0);return t<0.02?0:t>0.98?1:0.5}function f(t,r,w,v,y,x){function A(){if(E&&x<=0)return-1;B=z.distance2(w,l);if(E&&pv.floatLess(x,B.cost))return-2;if(s&&!D&&pv.floatLess(p,B.dist2))return-3;if(C===v.hasArea){if(D<v.inside)return-4;if(D>v.inside)return+1}else{if(m){if(!D&&v.inside)return-5;
 if(D&&!v.inside)return+2}if(!C&&v.inside===2){if(D===2)return+3;if(D===0&&pv.floatLess(3,B.cost))return-6}else if(C&&D===2){if(v.inside===2)return-7;if(v.inside===0&&pv.floatLess(3,v.cost))return+4}}if(!(m&&D)){if(pv.floatLess(v.dist2,B.dist2))return-8;if(pv.floatLess(B.dist2,v.dist2))return+5}if(m&&pv.floatLess(B.cost,v.cost))return+6;return-9}var z=t.mark.getShape(t,r),C=z.hasArea(),D=!z.containsPoint(w,l)?0:!m||z.containsPoint(w)?2:1,E=isFinite(x)&&D<2,B,F=A();j&&function(){if(F<-3||F>0){var G=
 t&&t.mark;console.log("POINT "+(F>0?"choose":"skip")+" ("+F+") "+(G?G.type+" "+r:"none")+" in="+D+" d2="+(B&&B.dist2)+" cost="+(B&&B.cost)+" opaq="+(y===1))}}();if(F>0){v.hasArea=C;v.inside=D;v.dist2=B.dist2;v.cost=B.cost;v.scenes=t;v.index=r;v.shape=z;if(C&&D===2&&y===1)return true}}function g(){var t=pv.event;j&&console.log("POINT MOUSE MOVE BEG");try{var r={cost:Infinity,dist2:Infinity,inside:0,hasArea:false,x:t.pageX||0,y:t.pageY||0};if(!(k&&u&&pv.Shape.dist2(r,k).cost<u)){c(this.scene[this.index],
-r);if(!r.inside&&!isFinite(r.cost))r=null;if(k){if(r&&k.scenes==r.scenes&&k.index==r.index)return;t.isPointSwitch=!!r;pv.Mark.dispatch("unpoint",k.scenes,k.index,t)}if(k=r){pv.Mark.dispatch("point",r.scenes,r.index,t);if(!n&&this.type==="panel"){n=this;n.event("mouseout",function(){h.call(n.scene.$g)});q&&n.addEventInterceptor("click",i)}else pv.listen(this.root.canvas(),"mouseout",h)}}}finally{j&&console.log("POINT MOUSE MOVE END")}}function h(){var t=pv.event;if(k&&!pv.ancestor(this,t.relatedTarget)){pv.Mark.dispatch("unpoint",
+r);if(!r.inside&&!isFinite(r.cost))r=null;if(k){if(r&&k.scenes==r.scenes&&k.index==r.index)return;t.isPointSwitch=!!r;pv.Mark.dispatch("unpoint",k.scenes,k.index,t)}if(k=r){pv.Mark.dispatch("point",r.scenes,r.index,t);if(!n)if(this.type==="panel"){n=this;this.event("mouseout",function(){h.call(this.scene.$g)});q&&n.addEventInterceptor("click",i)}else pv.listen(this.root.canvas(),"mouseout",h)}}}finally{j&&console.log("POINT MOUSE MOVE END")}}function h(){var t=pv.event;if(k&&!pv.ancestor(this,t.relatedTarget)){pv.Mark.dispatch("unpoint",
 k.scenes,k.index,t);k=null}}function i(t,r){if(k){var w=k.scenes;if(t=w.mark.$handlers[t])return[t,w,k.index,r]}}if(typeof b!=="object")b={radius:b};var j=0,k,m=null,o=!!pv.get(b,"painted",false),q=!!pv.get(b,"stealClick",false),l={x:1,y:1},n=null,p=function(){var t=pv.parseNumNonNeg(pv.get(b,"radius"),30);return t*t}(),s=isFinite(p),u=function(){var t=pv.parseNumNonNeg(pv.get(b,"radiusHyst"),0);isFinite(t)||(t=4);return t*t}();g.collapse=function(t){if(arguments.length){m=String(t);switch(m){case "y":l.x=
 1;l.y=0;break;case "x":l.x=0;l.y=1;break;default:l.x=1;l.y=1;m=null;break}return g}return m};b&&b.collapse!=null&&g.collapse(b.collapse);b=null;return g};
 pv.Behavior.select=function(){var b=null,c=1,e=1,d=false,f={dragstart:function(h){var i=h.drag;i.type="select";i.dxmin=0;i.dymin=0;var j=i.d;j.drag=i;i.max={x:this.width(),y:this.height()};i.min={x:0,y:0};var k=f.positionConstraint;if(k){i.m=i.m.clone();k(i)}k=i.m;if(c){j.x=f.bound(k.x,"x");if(!d)j.dx=Math.max(0,i.dxmin)}if(e){j.y=f.bound(k.y,"y");if(!d)j.dy=Math.max(0,i.dymin)}pv.Mark.dispatch("selectstart",i.scene,i.index,h)},drag:function(h){var i=h.drag,j=i.m1,k=i.d;i.max.x=this.width();i.max.y=
diff --git a/src/behavior/Point.js b/src/behavior/Point.js
index 3cd847a7..80e16744 100644
--- a/src/behavior/Point.js
+++ b/src/behavior/Point.js
@@ -342,12 +342,11 @@ pv.Behavior.point = function(keyArgs) {
 
                 // Initialize panel.
                 // Unpoint when the mouse leaves the pointing panel.
-                if(!pointingPanel && this.type === 'panel') {
-
+                if(pointingPanel) {
+                    ;
+                } else if(this.type === 'panel') {
                     pointingPanel = this;
-                    pointingPanel.event('mouseout', function() {
-                        mouseout.call(pointingPanel.scene.$g);
-                    });
+                    this.event('mouseout', function() { mouseout.call(this.scene.$g); });
 
                     if(stealClick) pointingPanel.addEventInterceptor('click', eventInterceptor);
                 } else {
diff --git a/src/mark/Mark.js b/src/mark/Mark.js
index 40d6b51e..ea546fa6 100644
--- a/src/mark/Mark.js
+++ b/src/mark/Mark.js
@@ -298,17 +298,25 @@ pv.Mark.prototype.setPropertyValue = function(name, v, isDef, cast, chain, tag){
         id:    pv.id(),
         value: v,
         type:  type,
-        tag:   tag
+        tag:   tag,
+        proto: null,
+        root:  null,
+        
+        // Used in #bind to connect the property chains 
+        // found along a mark's proto chain.
+        _proto: null
     };
+    
+    p.root = p;
 
-    var specified = propertiesMap[name];
+    var existing = propertiesMap[name];
 
     propertiesMap[name] = p;
 
-    if(specified) {
+    if(existing) {
       // Find it and remove it
       for(var i = 0, P = properties.length; i < P; i++) {
-        if(properties[i] === specified) {
+        if(properties[i] === existing) {
           properties.splice(i, 1);
           break;
         }
@@ -317,9 +325,9 @@ pv.Mark.prototype.setPropertyValue = function(name, v, isDef, cast, chain, tag){
 
     properties.push(p);
 
-    if(chain && specified && type === 3) { // is a prop fun
-      p.proto = specified;
-      p.root  = specified.root || specified;
+    if(chain && existing && type === 3) { // is a prop fun
+      p.proto = existing;
+      p.root  = existing.root;
     }
 
     return p;
@@ -1088,6 +1096,7 @@ pv.Mark.prototype.renderCore = function() {
  */
 pv.Mark.prototype.bind = function() {
   var seen = {},
+      root = {},
       data,
 
       // Required props (no defs)
@@ -1131,20 +1140,23 @@ pv.Mark.prototype.bind = function() {
         var pLeaf = seen[name];
         if(!pLeaf) {
           seen[name] = p;
+          root[name] = p.root;
+          // Reset, from a previous binding
+          p.root._proto = null;
           switch(name) {
             case 'data': data = p; break;
             case 'visible': case 'id': required.push(p); break;
             default: types[p.type].push(p); break;
           }
-        } else if(pLeaf.type === 3) { // prop/fun
-          // Chain properties
-          //
-          // seen[name]-> (leaf).proto-> (B).proto-> (C).proto-> (root)
-          //                    .root-------------------------------^
-          var pRoot  = pLeaf.root;
-          pLeaf.root = p;
-          if(!pRoot)            { pLeaf.proto = p; }
-          else if(!pRoot.proto) { pRoot.proto = p; }
+        } else {
+          var pRoot = root[name];
+          if(pRoot.type === 3) { // prop/fun
+            // Chain property chains of pRoot and p
+            pRoot._proto = p;
+            pRoot = root[name] = p.root;
+            // Reset, from a previous binding
+            pRoot._proto = null;
+          }
         }
       }
     } while((mark = mark.proto));
@@ -1387,7 +1399,7 @@ pv.Mark.prototype.buildInstance = function(s) {
 
     // 3 - prop - fun
     function(p) {
-      _protoProp = p.proto;
+      _protoProp = p.proto || p._proto;
       return p.value.apply(this, _stack);
     }
   ];