I don't know the answers to these questions but I might know a good resource. Google "Sacrificial Boards" (I'm having issues posting a link). This small shop does custom snowboards and longboards out of composites in the Puget Sound, Washington area. The guy who runs it also teaches classes at a local college where you actually make a board. I took his snowboard class (and have a really awesome powder board now!). Damien is very knowledgeable and will be able to give some insights.