It is good to finally here some other feedback on Ultra Foam. I have been using it since mid summer. I am Getting it from
http://www.troybuiltmodels.com . He also has electric accessories you can get. He does not stock the color material any more but I have quite a bit.
Did you know the white is also lighter than Depron.
The color material is a little heavier but I like using it for my planes.

Dick