Re: Plywood clamps
If you're doing glued lapstrake and painting your boat, you don't even need that many. Temporary screws driven through the lap to hold it in place until the epoxy cures is even quicker and simpler, and it will hold things in place well enough that you don't have to wait for the glue on those first strakes to cure before you start your bevels and spiling for the next set of planks cause there won't be all those clamps in the way. (This could save you many days of waiting around to start the next step on a multi-straked boat.) I only use a couple of lap clamps at a time for glued lapstrake, and I only use them temporarily until I've got it lined up enough to put in a few temporary screws.
Amphibious Macroplankton Oughtredia doublendus
Mostly found frequenting the littoral and estuarine zones in the southern half of the Salish Sea, though sightings have been recorded both north and south of this area, and occasionally, but rarely, inland, in freshwater environments. This species lives on micro-brewed beer and dutch-oven biscuits,and displays brightly colored nylon and gore-tex plumage during the rainy season. Approach with caution!