Thanks for bringing that up Kirt, I was about to do the same having been watching the saga on the Acat forum.

I don't think the rules are as clear as you say Mark as this is a development class similar to Aclass but with a firmer rule list.
The boats are going to evolve as people just happen to want to win or at least try and get some sort of upper hand, hence innovation. This class supposedly embraces innovation.

The Aclass guys are going around in circles simply because no-one can prove the canted boards are hyrofoils - by definition.

Lalo Petrucci also stated that assymetical boards and curved boards are illegal, maybe there's room to manouver with assymetrical boards as they can be used without canting (I believe).

It seems the F18s have the clearest of rules ie "they must be in the vertical plan of the hull". This to me anyway clears it up fully.

It would be a shame to see another hydrofoil circus carry on with this class.

Cheers Phil