I just recieved my Shearwater 17 S&G and want to get started correctally. I have noticed a mismatch in height as the panels are laying on the floor. This is caused by a slight bow in the plywood. Am I being too picky? Should I go ahead and epoxy the pieces together, or put something heavy between wax paper and the epoxy joint, or pin the pieces down somehow to insure a perfectally flat joint?