Hang on! I saw that there was no mention of a spinnaker but it did say "headsail" and a headsail is technically defined as "Any sail set forward of the foremast." So.....the spinnaker on the 4.3 is still in - right? Or does it not fall within the overall sail area rules?
I like the rules except for the sail area restriction. Heck, make it like the ozzy 18's - no sail restriction...he who hang-eth on-eth longest wins. Seriously though, make a mast height restriction but leave the sail configuration open. I have been chased closely by Rick and his Hooter Wave before (and I was on a 5.2 and placed 3rd!).
Building a 14' Formula boat will be high on my list of "to do's" if this thing takes off.