And the AC45's were going deeper, I don't think the kite had more VMG. Overall you make a strong argument that the ISAF cliam is exaggerated. Still whilst your Lake Geneva exotics may be faster, I guess if the kites prove the fastest Olympic class then they will get some cache from that. If we don't get them thrown out before that happens....heh heh. I think boats like the 49'er are kings of most lakes in light winds though, and the kind of performance target WS have in mind.
ps what a shame Alinghi didn't look so good at the Cup. Looked like they had an amateur at the helm. :-)