FIRST PLANK OF SEASON

And you guys all thought I had given up! Had to do this one alone - pretty risky, but it went well.
There are two kinds of screws - temporary and permanent. The permanent ones are stainless (304) right above the chine and right below the deck (the two places that the first layer of 3/8 damn well better hold - The next layer will will be the main screw layer, with screws going through both sheets.). The others are just home depot screws with washers to enlarge their clamping power - they will be removed and filled with epoxy before the second layer.
The 3" scarfs require significant clamping to ensure reasonable continuity from sheet to sheet. I have found that I like the scarf to be right before a frame. That way the next sheet is the dominant force and bends the previous sheet appropriately. All surfaces are sanded with 24 grit and then well slathered with epoxy followed by thickened epoxy. It seems to take about a third of a gallon for the initial sheet.
One trick for solo, or even with friends (really wishing I had some) is a short 2x4 "L" screwed on the top of 2x4's used for clamps, and even the plywood itself. Then everything an be hung in place and let go while clamps are adjusted. There is a lot of layout before the actual glue up so that you won't waste epoxy cure time. Also, I WOULD NOT USE A "DRIVER" OR DRILL THAT HAMMERS WITH STAINLESS BECAUSE, EVEN THOUGH THE SCREW MAY GO ALL THE WAY IN WITHOUT STRIPPING, STRESS RISERS IN THE HEAD MIGHT POP LATER. Considering that the frames are oak, some of it VERY WELL SEASONED, predrilling is an absolute must.