RE: cutting matts foam planes
I wanted to share some pics of a tool I modified for cutting flat foamies. Its a Master Airscrew Balsa Stripper. What I did is adjust the blade so that it just barely goes past the depth of the foam, this way the blade doesn't get abused. Also the blade holder on the tool is perfectly square to the base. So, all of your edges you cut with this tool will be 90 degree angles without even trying ! this makes for VERY easy gluing joints when you start gluing the parts together.
If you look at the side face of the cutter (where the blade is) I have glued on two thin shims. One is in front of the blade, the other is behind the blade. This allows me to lay a ruler on the foam and cut perfectly straight lines without the blade hitting and flexing against the ruler. This thing has made cutting my own kits so much more efficient. I hope it helps you guys.
I think I will post this under its own heading as well so maybe others will see it.....