During a recent rescue operation, I came down on the seat of my RapidFire much harder than normal, and I think I stripped out the horizontal screws that hold the inwale and the outwale together at the seat (the right side of the seat). The symptom is that, when I'm not sitting on the seat, there is a gap of a couple of millimeters between the two gunwales, only at the seat, only on the right side, that wasn't there before. When I do sit on the seat, the gap widens to maybe five millimeters.
There have long been dark circles around the two screw heads that hold the gunwales together, presumably water damage. Ideally, my fix would prevent further water damage. Most of the gunwale screws have this water damage; it's not specific to the screws where the gap has opened up.
To be clear, I am not talking about any of the screws that hold the seat together and in place. Those are solid. It just happens that the load on the gunwales was applied via the seat, so the damage occurred near the seat. Also to be clear: This is a RapidFire rigged for kneeling, with a cane seat hung from the rails.
And finally the question: My inclination is to abandon the two existing screws, drill two or three new holes, put some epoxy in the holes to seal against water damage, and put in new stainless screws. I am happy to hear about variations or alternatives, and especially about whether there is something special about the placement of the original screws.