ive done the vaccuum trick and sealed anything that had buubles with silicone, but i did not do the pylons around the deck, should i also seal up top around the castings and pylons? could my foam core have deteriorated? by the way, what are these little plastice nuts on my pylons? could water be gettin in there? and it was some pretty intense sailing, we were flyin a hull for most of the time... and we flipped twice, so it was on its side for a good 20 minutes...