I did the reverse winding and it was still invisible from one side. It's okay, I am able to use it just fine as single sided now.

3DZ, it's funny, but the first examples I gave were in P4 and P6, I tried it in P5 and it looked just like the P6 version.

Maybe it was especially bad in this case because there was a curvature in the plane I created (pretty substantial at the ends) that you really can't see in the pictures.

Either way, I did learn something, and am grateful for all the help.

Now I just have to get used to the 'invisible from one side thing' ,hehe.

JDexter