The mosquito fleet in Edgartown harbor is worse! I've seen float tubes a half mile out. And nothing wrong w/ tin. Its the rubber dinghy's that scare me when hooks are flying everywhere!
Rockpile at East beach. Boy - I'll bet if a bonito got going there it could keep on going all the way to Wasque or Pogue w/ nothing to stop it. I've also heard from others in years past of "East Beach at dawn for bonito". Guess you confirmed it.
L.