sebastian wrote:

also i would like to not use foam core in my layup for simplicity and
minimizing weight...but will the canoe sink like a rock if its swamped
if its just kevlar/carbon/epoxy? I am wondering if i should use a
1/8" atc core cell between layers of kevlar...for buoyancy and
stiffness.

It won't necessarily sink, but it will float so low in the water that
you won't be able to paddle it. A foam core will not provide enough
buoyancy to make a difference. Either create sealed compartments (with
access hatches) or use float bags to provide the buoyancy you need.