Hey Spidey, I did something very similar, except that I just put the hull and deck back on the forms. I glassed the outer hull and deck a day or two apart and didn't get them back on the forms quick enough, so there was about 5/8" of spreading action going on with the deck near the cockpit, and some more in the hull by my feet. I did the interior glass of both halves the same night. When they'd reached green cure the next morning, I threw them back on the forms with scrap strips and screws between the deck and hull at the sheer and left them on the forms for 1.5 weeks while I built the coaming.

It definitely worked well, and the maximum misalignment when I went to seam everything together was 1/8", which was easily held with strapping tape while I glassed the inner seam.

Shawn
: Hi All, especially newbies like me;

: We have learned that when we finally apply the interior glassing to our hull
: and deck, they get "locked" in the final position present when
: the inside epoxy cures. Since the hull & deck have to align, we take
: care to insure the measurements along the hull & deck coincide as a
: consequence. Most of the time, we use spreaders or tape applied to the
: hull, & then the deck to force the beam to correspond at that point.
: Tonight I said "the heck with that stuff," since I would
: actually have to build the spreaders, etc. Sounded like work.

: Instead, I masked the top edge of my hull and dropped the deck right on the
: newly green hull, and aligned the two with strapping tape. They WILL fit
: together without incident after the epoxy has cured. To make sure the
: wider deck (in my case) did not spread the proper hull width, I stretched
: strapping tape across the hull at the center to lock in the maximum beam
: measurement. Those tape strips became taught as I pulled in the deck to
: match in that area. In other places, the hull was pulled in to match the
: deck "unforgiving" areas. It actually is much simpler than it
: sounds, you simply make the two halves fit together . . .

: The picture below shows the hull inside glass curing while locked into
: position with the deck by the strapping tape - No steeenking spreaders!

: Hope this saves someone as much work as it has saved me,

: Best Regards, Spidey