I really don't think curved boards are a viable solution for the F16 class. They are very cool and certainly to elevate the performance of the boat and the sailing experience. But they are very expensive to design, develop and build, to the point that they would be prohibitive for pretty much all the current builders and thats not the point really.
Most of you know my views on the class rules relating to development and I would be very happy to see tighter rules, hence reducing costs. Rather than throwing heaps of $$ at developing uber boats..