This is great information. Thank you so much. This provides the needed information to grow the local OD J80 Class. Get out of the handicap arms race now. Buy a small jib, big chute, make this mod, remove this, add this, you will do well sailing with an undersized sail in light air and do this but don't report it. I'm not sure how anyone can justify the money on handicap boats right now. J80 OD sailing is making more cents every day now. Sail on.