This was the toughest one yet. "Everyone" says to put the forms back in the hull while it sits after glassing, but I guess you have to do it immediately, which I didn't. The hull & deck mismatched by as much as one inch in places. My Home Made Aluminum Tool wouldn't even stretch it out enough.
I ended up putting spreader sticks across most of the hull. Tape wouldn't hold the two halves together, so I "tack welded" with epoxy. I tied strings to the sticks, so I could pull them out after the epoxy set. It worked!
I used 9 oz. tape to put the halves together, making the usual mess.