Neat-o!

I do vacuum forming for RC car bodies. We machine our molds from billet aluminum (overkill). Couple questions:

1. Why do you make a shell around the pattern to pour the silicone mold? Have you tried "brush on" silicone with thickener? I guess the advantage would be that you have your "support" form done already. Downside, you use more silicone?

2. Is Dave doing licensing? I'd love to do a GTM 1/10 RC car body. I know he has CAD files of it, hint hint.