Yea, it was in the right place...above the hook, right?...

Just kidding. I never flipped the boat on it's side with the sail up to make sure the clamp was right at the top of the sail (although you would have to leave an inch or so anyway to release the hook and lower the sail). I just eyeballed it with the mast down, using the ring and shackle as a guide.

Anyway, thanks all for the info. I'm very happy to see that I don't have to pull the whole mast apart to replace the track.

sm