Can't reef to no boom.
only a taller modern performance style sail will work well with no boom as the clew must pull back towards to traveller. Taller sail, better aerodynamics but less control because of higher centre of gravity. Some A class cats used to compete well with no boom. Example the OK
Boomless usually would have to have cuttaway foot for better control of bottom of sail which is excellent for reducing induced resistance.
Maybe it is about someone having the gonads to try in the higher end of a performance class using the newer later style of rotation controls for boomless (as described earlier in this thread) but that would require getting out of a comfort zone that almost all perfomance sailors are used to. <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" />