I'm building a small stripper. I used 3/16" pawlonia strips for the hull, and WRC for the deck. As is my usual sequence, I stripped the hull, flipped it, stripped the deck, removed the deck, faired the hull interior, and fiberglassed the hull interior. I replaced forms 15, 12, 10 6, and 3 back in the hull at points I had pre-marked, before the epoxy was fully cured. I noticed that the forms fit well low in the hull, but there was a gap at the sheer, so I stretched tape across the hull to bring it in tight. One day later, the tapes strips were slack, and the forms fit snugly in the hull. I applied hot-melt glue to hold them in place.
I put the form risers back on their respective forms, flipped the hull again, and fiberglassed the exterior. I noticed that the forms kept wanting to fall out (hot-melt glue has lousy holding power) . After the fiberglass coat, and one fill coat, there is now a whopping 1/2" gap at the sheerline. In the past, when I have had a misalignment problem, it was always of the hull being too narrow for the deck, and I solved it with spreader sticks in the hull. I have no idea how to push the hull back together that far.
If you have solved a similar problem in the past suggestions would be greatly appreciated. If the problem isn't solvable, please give suggestions on how to avoid it in the future. Please DO NOT post replies telling me that I screwed up , I already know that. Thanks.