John: I notice from your website that you sell MAS epoxy. About all we can find out here in the remote hinterlands are the West System products. Is there a difference, or is this a Ford/Chevy thing, or rather a Cadillac/Chevy thing? (They both are almost the same produce...one just costs twice as much, i.e., Escalade/Avalanche) We can also find polyester resins, but no vinylesters. Bob recently told me he uses 100% vinylester resin to lay up the M-boats. Unless I was mistaken, that sounds to me like an undocumented, but valuable, feature to have. It's my understanding the even the high dollar boats only use vinylesters on the first one or two layers of mat and cloth under the gelcoat for blister protection, then revert back to the cheaper...errr...less expensive polyesters for the rest of the layup. Even on my goofy little projects, when a quart of epoxy/hardener costs $40 and a quart of Boatyard resin is $15, it makes you think twice. Howard