On a related tangent,I'm just finishing up a
> very skinny boat(19") with a 12"radius deck beam,your Ches. is
> 16" radius deck beam. If your goal was skinnier boat with footroom I
> think it wouldn't be a problem to bend 3mm on a 22" wide boat, not
> sure about that 12"radius beam though (13"?),my next North Bay's
> (20") going to have a tighter curve for more foot room. It makes for
> some major planing of shear clamps.

Lee, Bend the camber into the panels and glass the inside (4 oz cloth) before you install the deck. It will go on like a charm.

Grant