Like the idea of a non one design event. In order for the race to last it is imparitive that you get a reasonable turnout the first year and it gets coverage from media and a positive story coming from the people who sail it. Nothing gets me to an event faster than some of my friends telling me how great it was last year. As far as a strict F-20 rule set...I think you should wait a couple of years. I have read the NE 6.0 fleet has adopted a standard chute that would be too big. Are you going to discourage them by forcing them to buy another $1200 sail when they just bought one? Participation is more important than a rule set at this point. For the first year put on a safe and exciting race..fine tune it when it catches on.