I don't want to give any secrets away, but so far every guess regarding gelcoat has been incorrect. As far as the body work goes, once the filler is sanded and long boarded, you are left with an extremely thin layer to avoid any cracking. It takes a few hundred extra manhours to perform this method, but the end result is far worth it.
The entire boat is Carbon Fiber with an epoxy resin, as far as the gelcoat I'll leave it up to you to decide.