That said, my understanding is that leaving the luff length unrestricted will not actually penalize Wouter's design, since his argument I believe is that aerodynamically a design without the flap is more efficient.
Ohh, I'm perfectly happy to race against any flapped design while sailing a non flapped design myself. It is just the perception thing that worries me and the fact that I do believe the flap obstructs critical visualbility in collision situations.
It is also my believe that without strickter F12 class rules then we have now we'll end up with mini A-cats. Which in my view is the same as the other expensive boats (F16, F14, A-cat) but then with less less performance and robustness. That is in my opinion not the right balance to strick with respect to the entry level cat that the F12 was intended to be.
But I'm happy to have the others decide to go down this route if they really want. I will however keep the orginal F12 concept going on the background just in case.
Wouter