So

No restrictions on materials.

No restrictions on boards of any type.

No restrictions on rig except that you HAVE to have a jib it appears (sorry M20 owners - guess you could always build a wing)

No problems with extending the rudder appendage off the stern like they did in the C-cats.

No restrictions on trapping racks or wings (not the wing sails)

I mean, this is pretty much an arms war if you ask me.