Pepin,
I'd be ok with the mushrooms, particularly since I now have grommets in the tramp. But it seems like I'd need to be securing them into some reinforced section of the hull. I doubt riveting into the foam sandwich would hold.
Your other idea seems doable as well, although I don't have a totally clear picture of what you're proposing.
I guess I need to gently pry on the groove and see if it is
indeed flexing excessively. Thanks guys, and I do recognize that some of these remedies you've offered me before, when I first got the boat from Gary.


Dave