I always cleat the main and jib. I even cleat while I am out on the wire but the second the hull starts to rise I uncleat. The main sheet has to be across my legs or in my hand. The adjustment of the angle of the cleat is very important. I set it so when on the wire, I have to raise the line pretty high to cleat and a straight horizontal pull will uncleat it. Since I single hand a lot I leave the jib cleated. I seldom go over and have been sailing this boat for 20 years.

Howard