+1 on that Karl!

I don't recall anyone ever breaking a mast from oversheeting a main (on any boat except maybe an H16 before they started raking the masts back). Even with the 10:1 setups?

Only N20 masts I've heard that broke were stuffing into a wave with spinnaker up (Mike H), letting the mainsheet go with the spin up, and getting tossed around at Jensen Beach during the T500. Maybe there are more out there?