First time I've used a reefed sail on H170 (bought "new" 2008 model w/ North Sail). Gail warning day, just me with a reefed mail only--had a great time for a couple of hours. Then the clew end reef line broke. I was only minutes down wind from the ramp, and had tied the bunched mid section to the boom loosely, which held most of the sail in place (except for the embarrassing flapping loose back end). Turns out the eyelet was a bit "off" and had a continuous sharp edge that sawed the line. I didn't think to check the new equipement for trouble like that.