RC - I have this one. Haven't used it much yet, but at $13.xx I am not worried if it breaks either.
Mo, We've had a J/24 sink here in our club as well. In our case, they were knocked down and the cockpit lockers were not latched and the boat went down. Everyone in the club starting latching the lockers after that.
http://amzn.com/B007VAVTHU