old_man
Adventurer
A trick NC boat builders use for bending plywood over tight curves is to cut many shallow, parallel grooves into the backside of the plywood which allows the inside layer(s) to bend over a tighter radius without any of the layers cracking. Marine plywood also has more layers per thickness that other plywood, which means each layer is thinner and can bend better.
JPK
Thanks for the input. The problem here in Colorado is that there isn't much of a demand for marine grade plywood so it is hard to find (expensive). I though about grooving the rear, but ended up just thinning it a bit with a sander. I just wish I could get the Baltic burch in larger sizes than the 5'x5'. The next one will be made an inch shorter in order to save a ton on plywood.