First time boat builder here, and I've hit quite the road bump. My current project is a strip built Guillemot kayak (regular size).
Apparently I didn't take as much care as I should have when glassing the deck and it came out about 1/2" flared on each side of the hull about 2/3rds the length of the boat (centered around the cockpit).
To battle this and to increase flexibility, I sanded off some of the fiberglass on the inside of the boat which helped as the boat is now able to flex the required amount.
Problems arise, however, when I actually try to flex the deck while it's over the hull. I don't have any clamps with a throat wide enough to accomodate the girth of the deck, so I can never manage to "squeeze" the deck to match girth of the hull.
I've tried ratchet straps, but that just squashes them together before it squeezes down the girth. I've also tried using two long boards and using a top and bottom clamp to squeeze the deck, but it twists all over the place and becomes difficult to work with.
With that being said, I feel like my options are to:
1) keep messing with trying to squeeze the deck to match the hull and fiberglass it. I'm worried about this route because of all the internal stress that would be built up in the boat.
2) remove a lot of fiberglass from the inside and outside of the deck and reglass it while conforming it. This could be a problem because my strongback has seen better days, and it's falling apart in multiple places and I would basically have to recreate a new one (plus multiple new forms that have fallen apart).
3) bevel an edge similar to the pictures below, and sand the overhang flush with the new beleved edge o nthe hull. This is positive in that I don't have to worry about internal stresses being locked up when I glass the seams as the boat would be "as is". The downside is that there might be a slight hard edge where the deck/hull meet as opposed to the previous expected smooth edge.