I have the primary offsets for Nick's Guillemot plugged into autocad but I can't figure out how the diagonal offsets work. So far everything I've tried produces a linear function. I haven't found the instructions on pp 49 and 50 of his book to be much help here. I'd like to get this worked out or I'll be paddling a box with a slight curve to the deck and hull and the craziest chines you've ever seen.