How is it that the F18 sail is 183 sq feet and the 5.5sl is 241 sq. feet (according to the Performance website)and the F18 sail has more power? Does size mean less than shape and this is a case of "less is more"? Forgive me if that is an idiotic question and obvious to everyone. I'd love to talk to someone knowledgeable about sails for a minute or two. It's a fascinating topic. Is there a cheat sheet of what sails would fit on what boat that anyone has seen?

The nice part about being a pessimist is that you are constantly being either proven right or pleasantly surprised. - George Will
"It's not that liberals aren't smart, it's just that so much of what they know isn't so" -Ronald Reagan