I don't know how you do things in the US but in OZ if I registed for the regatta in a boat like this, I would not register as a Tornado. May be Custom Tornado or Carbon Tornado.

This will declair to everybody what you have and the race committe can decide on a suitable handicap.

This would keep everybody happy. I would like to think that nobody would ban a boat like this from racing (other than maybe important Tornado Regattas) Most would like to see the carbon monster in full flight.