@Steve in Idaho , I'm glad you're enjoying it. Lots of builders here to lend advice if you'd ever care to try one yourself (you really should IMO but, fair warning: it gets addictive and they tend to look better as you build more & learn from your mistakes)
Speaking of mistakes... I stopped at the shop to grab the seat parts and found that haste makes waste.
I also scraped the runs from under the seat support tabs and yanked the crap out of them trying to rip them off of the hull- better that they come off now than on day 5 of a 3 week trip, right?
I did not fare so well on the seat... I had skipped soaking the strips when I decided to remake the seat and, when removed from the jig, the rear (1 inch drop, 24 inches wide) seemed to be ok but the front (2 1/2 inch drop, 24 inches wide) had cracked the top Sassafras strip on one side.
Never one to learn from failure, I decided it must have been a fluke so I mixed up more epoxy, built & buttered another stack of strips & loaded them into the jig. I was tightening the clamps gradually & watching the strips to make sure I got squeeze-out from every layer and, just before the jig was completely tightened, I heard an audible "crack" so I'm sure that I broke one of the strips again.
I'm set back at least a week now as I'll have to soak strips 3-4 days, let them dry in the jig 4-5 days and then try again. If I'm going to all that trouble (and not being certain that the rear isn't compromised by my lack of patience), I'll remake both front & rear crossmembers. A 3 week solo in Wabakimi will be no place to find out that I weakened it just enough to fail when I sat down too hard the 4th time...
On the bright side, I've got testers to be sure that my cutting / fitting methods are sound before trimming the actual seat parts and I'm convinced that the 7 layer lamination is plenty strong. The broken front support is almost 4 feet long when removed from the jig. The top strip is visibly cracked so we're down to a max of 6 layers. Just out of curiosity, I placed one end on the base of the strongback & the other on the base of the shaper (notice that I planned on only falling 5-6 inches to the floor). I then placed my posterior upon the lamination and was pleasantly surprised when it held my full weight! (a little over 200 lbs).
Considering that there will be 2 (uncracked) supports bearing the weight in the final seat configuration, I think it will be plenty strong enough even though it DID crack on the second test when I attempted to show my buddy how tough it was. I got my big @$$ off of it before it broke in half though so I can still use it to test fit.
Tomorrow I'll have to stop over, cut some more strips and start them soaking. Unless I'm mistaken, I'm going to have to be able to spread the gunwales in order to get the seat in & out so I'll have to widen the inner gunwale a little at the thwart location and widen the thwart a little at either end so I can bolt it in place instead of gluing & screwing like I did the last one.
I gotta get this seat right or I'll be ordering more epoxy... I'm down under 2 gallons of resin & I've started my last gallon of hardener (for any non-builders, I'm being facetious. I can easily build another whole boat with what I've got left but still... I hate wasting time & materials)