waynemarlow....interesting you mentioned the four board system...I was thinking of that myself...it seems like it could be the next natural progression of the curved boards...a forward and rear board that could be raised and lowered to dial in the proper lift and for/aft balance could be an interesting experiment...might think of the single foil of the current boats as being similar in principal to a unicycle and a two board boat (per hull) similar to a bicycle...

Instead of doing a "wheelie" it might translate that power into forward thrust...of course if the front foil loses lift and the rear stays hooked up...wow...talk about a neck breaking catapult...LOL