Hold on. It's straight forward! At least in a layman's view and should not require any flame suits.
F16 is not an "arms race" class but yet is not a "stagnant" class either. Curved boards are still the extreme and cutting edge for beachcats. You will have an extreme gap of the "Have" and "Have Nots". Incremental changes within the box rule are OK; ie. moving back the forward beam and moving foward & lower volume. Or main sail cut.
According to the commentary on ESPN360, the concept of curved boards have been around for a while. Their function is to lift hulls. For example; A-Cats are carrying less volume/ft than the F16s (especially the newer F16s) and are more true to the wave piercing concept. They are more likely to benefit from curved boards. Whereas, the Viper and Falcons are proving to hydroplane very quickly "as is" and anymore lift may make them less stable at speed, especially with a shorter LWL.
The F16 box rule does have a compromise? It allows for a nominal amount of fixed cant in the dagger well?