I like sailing the Viper heavy, you do lose some in the lighter stuff, but you gain so much when the wind is up. The best I've ever sailed we were 385lbs at F16 Nationals in Gulfport. Anything over 15kts as long as we had clear air, we owned the fleet.
I'm looking at the weather graph for St Pete Beach (near Gulfport,) and the average wind last year was less than 4kts. I'm guessing that at 385lbs, you don't won the fleet all that often. :-)
(Is that smack talk?)