Nils Bunkenberg is the designer and builder according to my sources. Bunkenberg saild with a similar boat this year and had excellent speed until he broke the centerboards. He switched to straigh centerboards and got "normal" speed. The centerboard slot in the hull is wide at the top and can use both straight and curved boards. They sailed against the boat today and when he pulled up the boards on the downwind he had the same speed as every one else but when he pushed them down he just walked away!
