Many in the A-Class believe most of our boats in the future will either have curved daggerboards or straight boards that have canted trunks within the hulls (like the Flyer II). A straight board in a canted trunk produces a lift component similar to a curved board. Then there is a fast boat like the A3 with straight boards and non-canted trunks.
Curved boards are not necessarily faster, they just allow you to continue to push the boat in conditions where you might be backing off with straight boards. In light air, straight boards are probably better.
Any manufacturer would be wise to not overhype (the new DNA A-Class builder has a promising boat but is big on marketing spin). The curved boards are sexy and cool looking but if not executed properly, could be slower. There is no Nacra F-20C with straight boards or straight canted boards to compare to my knowledge. The only curved boards at the LAC were on the ill fated Aethon and while they felt there was an edge in breeze, they were not sure if they would have the same pace in lighter air.
