I watched an I-20 beat several Maxis and Sleds (70-82ft+), boat for boat around w/l courses in the Caribbean during 2000. I was sailing at the Heineken Regatta and the Rolex during that season, on a maxi-sled. The I-20 was the sole spinnaker boat in the beach cat class and the cats started AFTER the Maxis/Sleds!

The name of the I-20 was Southern Utilites, I think. Anyway,it sailed higher nad faster upwind that the giant monos. So,cats do "smoke" monohulls around the cans!