Thanks for the feedback. I was able to remove the remaining part of the comp-tip this weekend and confirmed that it was glued in.
Here is a picture of the end of the comp-tip I removed. The thickness of the fiberglass is not uniform. It is about half as thick on one side as the other. This seems odd to me, but maybe its within specifications.
To answer SailScott's question:
I store my boat in covered storage less than a mile from the beach where I sail, so it gets minimal trailering. I put the mast with the bob in the back and don't allow it to extend beyond the hulls, so the comp-tip definitely wasn't hanging off the end and the bob was very close to the back cross bar. I was five miles out when this happened, so it may have been weak from age and previous stress when I started, but it was strong enough to sail for a good while before breaking. (~30 minutes)
Does anyone know if the new comp-tip comes with the foam already in, or do you add the foam after you glue it in? There was a hole in my mast (with a plug) a little below the comp-tip. I was wondering if I am supposed to spray foam in there after I glue in the new comp-tip.
Looking around on the web, I can pick up an old H16 for less than the price of the comp-tip. The hulls and tramp are trashed, but the mast, sails, and other rigging are in good shape. I'm thinking of trying to use a H16 mast (no comp-tip) on my getaway so I don't have this same problem again. I would have to change out the base. I'm not sure what to do about the extra length (I think its about 1.5 feet longer). I could trim it to the correct getaway length, or keep it longer and try using the H16 sails and rigging. Has anyone tried anything like this before? Is this a bad idea? I'd appreciate any feedback.