I'd agree with skater. Make the pillar meet the floor. And the face that is out of view, i.e touching the floor, make it's texture property none that why the portal count is the same as if you overlapped blocks, but A4 doesn't have to calculate the area to clip, so the build time isn't increased, and everyone happy.

[This message has been edited by Smiffy (edited 28 February 2001).]