Got to admit, that without a solid rating rule in place, why would anybody build a custom 50 - 70 foot racing yacht these days? The ton and 50' IOR boats, and the 70 foot sleds were big boats that brought it....with a lot of amateurs onboard being directed by some pro sailors. The year of the maxi Worlds at BBS were epic. But why would anybody pay to have a custom raceboat drawn and built these days. Why would anybody on the West Coast pay to have a new TP52 drawn and built, knowing that the circuit is 10 time zones away and full of pros.
If BBS went back to a hard waterline length cutoff, you could have a big-boat series, that would not be very big.