Can you elaborate on that a bit more?

I agree that 180 boats on one circle, with a 50-minute target, makes for tight conditions.

But, how does the tide opposite wind break masts, and more importantly, daggerboards?

I can see your point if large, confused seas caused a lot of capsizes that would lead to broken masts, but how were the daggerboards being broken? Was the water THAT shallow?

Mike