The core was good, though I didn't follow what you meant about how water could get into the core since these stanchions don't penetrate the core there. At any rate, I added a fix that is similar in concept to yours except by reenforcing with plywood and new glass. (Photo is pre-sand and gelcoat, of course ;))
We'll see how that works.
![[Linked Image]](https://j30.us/ubbthreads/attachments/2615.jpg)
![[Linked Image]](https://j30.us/ubbthreads/attachments/2616.jpg)