I also have been looking for a kite for a power cat--I even contacted one of the surf kite makers--not interested in a boat. My local sail maker doesn't want to try it. There is definately a market--probably going from the sailboard type of kite which are really quite controlable. Foils: We raced a monhull which had asymetical dagger boards (both in the same trunk--and we would tack the boards to always have lift. In doing the Transpac, IOR gave us a 6 foot penality rating for the asymetical boards, so we just glassed them together. The difference was minimal after we had glassed the boards to give a symetrical board. The boat went on to sail around the world twice and win many ocean races with the single dagger board. Bob Austin