I rounded the deck on my Great Auk by cutting a curve at the high point using a template that I made. Next I cut a few evenly spaced kerfs in the remaining forms and strung lines through the kerfs from the bow to the curved form. After that I made reference marks and fiddled arround until the deck shape flowed nicely. I also used my template to check the curve on the remaining forms. It didn't take long and was a lot easier than I imagined.