Just been watching a few cat sailing video's that are going around on the web and it strikes me that so many people are cleating the main !
The only times I cleat the main sail is if I am sailing down wind with the kite up or when it is fairly light and I'm moving around doing something else - mast rotation, plates etc. I always un-cleat after this as I feel that it gives you that vital 1/2 second. When it is windy, I never cleat the main upwind.
Do you cleat your's much ?