diff --git a/js/fea/DmaCell.js b/js/fea/DmaCell.js
index 1c9f0b07ee487bfc70e0572601a555a3535de3c5..ade16c1f5692f04d3ed783da1f9f073c862512f9 100644
--- a/js/fea/DmaCell.js
+++ b/js/fea/DmaCell.js
@@ -163,7 +163,7 @@ DMACell.prototype.destroy = function(){
         if (zIndex%2!=0) mesh.rotation.set(Math.PI,0,0);
 
         mesh.myParent = this;//we need a reference to this instance from the mesh for intersection selection stuff
-        dmaGlobals.three.sceneAdd(mesh, "inverseCell");
+//        dmaGlobals.three.sceneAdd(mesh, "inverseCell");
         mesh.visible = false;
         return mesh;
     };
diff --git a/js/models/BasePlane.js b/js/models/BasePlane.js
index 9bfd363386078a1989f99c8daab3900b8305857c..81990ccc24c27c4e6eccbd61ca7402ccf41bc59c 100644
--- a/js/models/BasePlane.js
+++ b/js/models/BasePlane.js
@@ -181,6 +181,7 @@ OctaBasePlane = BasePlane.extend({
     calcHighlighterPosition: function(face, position){
 
         var index = dmaGlobals.lattice.getIndexForPosition(position);
+        if (index.z%2 != 0) index.x -= 1;
         index.z = this.get("zIndex") - 1;//pretend we're on the top of the cell underneath the baseplane
         var position = dmaGlobals.lattice.getPositionForIndex(index);
         position.z += dmaGlobals.lattice.zScale()/2;
diff --git a/js/models/Lattice.js b/js/models/Lattice.js
index 8bf03b4f71e3cbe9beef870ae1f9843ea24bf45a..3e806f73e7815cb7d3ae124676d052fef93a1743 100644
--- a/js/models/Lattice.js
+++ b/js/models/Lattice.js
@@ -399,7 +399,7 @@ Lattice = Backbone.Model.extend({
         getIndexForPosition: function(absPosition){
             var scale = this.get("scale");
             var yIndex = Math.floor(absPosition.y/this.yScale(scale));
-            if (Math.abs(yIndex%2) == 1) absPosition.x += this.xScale(scale)/2;
+            if (yIndex%2 != 0) absPosition.x += this.xScale(scale)/2;
             var index = this._indexForPosition(absPosition);
             if (index.z%2 == 1) index.y += 1;
             return index;
@@ -434,7 +434,15 @@ Lattice = Backbone.Model.extend({
                 position.y = (position.y)*this.yScale(scale)-scale/Math.sqrt(3)/2;
                 position.z = (position.z)*this.zScale(scale);
             }
-            if ((index.y%2) != 0) position.x -= this.xScale()/2;
+            if ((index.y%2) != 0) {
+                if (Math.round((index.y/2)%2) != 0) {
+                    position.x -= this.xScale()/2;
+                }
+            } else {
+                if (Math.round((index.y/2)%2) != 0) {
+                    position.x -= this.xScale();
+                }
+            }
             return position;
         },