I have used it for a year on 2 A-cats and am pretty happy with no more hull damage from the hook. Disadvantage is slower hooking up (balling up?) on roll-tacks (racing tacks) as about 3 more seconds are needed to find the keyhole.

Another disadvantage- You may have seen me at the first windy race in Islamorada hanging out over the front of the boat- still on the wire. Trying to avoid the lee boat (Jay Glaser) just after the mark while still on the wire, I lost it and swung out wide. It is a Helpless feeling hanging there, waiting an eternity for the boat to go over frontwards. It would have been the same with a hook- pretty hard to get off it, up in the air and caught around the port forestay.

PS: The plastic plates are crap and break right away.

Otherwise, it may be good for large sail-persons to climb back onboard at the rear crossbar to avoid hook damage: Get your heel up on the hull, back of your arm over the rear crossbar to hold onto a hiking strap, then lever on board Belly Up. Try it- easy and quick. I had a bad shoulder then and it helped.