Had to reef to the first reef for a while recently (doesn't happen too often in SoCal). I was really disappointed in the sail shape. Great big bag. Went all the way down on the (hard) vang, but it didn't help much. Assume the reef line going to the aft part of the boom should have generated adequate flattening/aft force. Everything looked snugged in well enough. Other's experiences??? Thanks, guys. Rick D.