The shorter the boat, the better foils should work, it would need some thinking out of the box as to correct placement as upwind and downwind would be two quite different issues, I think there was a Dutch development 20ft boat a few years ago that tried a 4 board system with straight boards, perhaps if they were to repeat that with the knowledge learnt from curved boards, they may get interesting results.
Wayne, I am seriously not trying to pick on you here but the dutch boat you speak of was actually a boat co-developed with Rob White. It had the 4 boards and it never worked... In fact the guy who drove the entire project has recently sold the boat and bought something else..... GUESS WHAT
