Thanks again everyone. I will be saying "the further it heels, the more force it takes to go over, the more it wants to right" this weekend and let you know if it works. I like that!
Also, I watched the videos on YouTube that uspirate shared the links to. I'm thinking that's about where we were - the deck of the boat was just about or in the water, but I'm sure the rails weren't - so is that fairly typical on a windy day? What degree/angle would that be?