Don't you need to set the OC for the object that is to be culled not the object doing the culling? and would a better check be to see a drop in polys renders?
OK, thanks thought it best to check.
Using:
Framework.Effects.EdgeAntiAliasing.Enabled = true;
Gives the error:
'Leadwerks.Framework.Effects' does not contain a definition for 'EdgeAntiAliasing'
Its not something I have tried so I cant say if it would work, might pay to look at the file format of the Alpha_ xxxxx .DDS that the editor creates when saving a map.