oh, didn't know about that; mylar is news to me. sounds like part templates... that could save some time I guess but I envision it being 2D so wouldn't help with some of the compound cuts when you want to accommodate the convergence of the topsides in the frames. Sure would help with the gosh-darned stem.

I bought a bunch of sheets of Okoume marine grade from some place out in the midwest... and messed up one of them on a mistake so I need to get another 3/8, sigh. Not cheap but I love working with the stuff.