Rolf,

Having them on a a boat at an event such as the GC would be meaningless as far as an evaluation of their potential benefit.

What is needed to prove in the concept is 2 boat testing with identical equipement and rotation of sailors. Testing over a wide range of conditions and settings.

If I can mange to win the lottery maybe it would be a fun thing to try....Then again if I could spend that much time on the water, I know for a fact that my performance would improve way more than any gain a foil could provide for me.