In my case 2 years ago, it was the "mainsail shackle+ring" up the top breaking and that 15 dollar item does indeed put an end to your racing (sail comes down). I can tell you that it is very hard to find a quick replacement for that. Typically a very tall D-shackle will also do the job, but those are very rare in repair kits. The hook itself with its edges will cut through any line when you put 450 kg mainsheet tension and 500 kg downhaul tension on it. You also completely deform and break any welded trapeze rings. Afterall we broke the thing in 25+ knots and big waves.

I'm not saying I know what the pop in PTP case was, but I do understand that it can sometimes be a very small item (little damage) that puts you out of action for the whole weekend ! <img src="http://www.catsailor.com/forums/images/graemlins/frown.gif" alt="" />

Wouter