Well, I guess I popped a seam. There is obvious stress in the fiberglass on the outside of the stern. You can see a line in the picture towards the keel. There are also a couple of areas at both ends with light showing between the strips with no evidence of distress to the fiberglass. I thought I had all the cracks filled pretty well. How do I fix this without creating three more problems? Or should I leave it alone? I haven't put a reinforcement strip over the keel on either end yet, will that take care of it?

By the way, I already sanded and patched to uncured epoxy area... I got a dark halo. It won't be obvious to ny one but me and everyone I tell.

Thanks