Did you make up your mind on using the PL premium? I think it will be fine, biggest issues seem to be off-gassing, impossible to make smooth fillets and time to cure. Upside is it's a polyurethane glue, sticks to fiberglass and is water proof (but not recommended for constant submersion). May be a good idea to scuff up both mating surfaces to help with adhesion. I read a post where they put the glue on the top of the stringers, put the board down, pulled it back up and then drilled through the glue from the back side so that the screws would hit the cleats. Think I'll try that. The gelcoat looks nice although putting it in the fuel tank bay could be considered overkill? I think I will gelcoat the ski locker and the deck from the front of the rear seat back. No one ever sees this area except me when I work back there. Think it will dry out better without the carpet. I'm trying to eliminate any screws through the deck that aren't covered with fiberglass. My forward seats bolt into a metal plate, the trim pump screws into the deck and the support structure for the sun deck is screwed into the deck. For the front seats I think I'll get rid of the under deck steel plates and glass a piece of ply onto the deck then use wood screws with 5200 to secure and not penetrate the deck. Same for the trim pump. For the lower support structure of the sun deck I may just drill the hole oversized and fill with PB and then drill/screw into solid glass. I've also thought about modifying it and glassing in a piece to the deck and then screwing into that. Something to think about. My boarding ladder has bolts through the hull below the waterline and the 4200 failed at some point in the last 20 years which ended up destroying the plywood support for the ladder. Trying to think of the safe way to fix this. So far, all I've come up with is drilling it out larger, filling with PB, drilling the holes and using 4200 on the bolts. Every 5-7 years I'd remove the ladder and re-bed with new 4200 before replacing the bolts. Have any opinions on these ideas? Hey, there were supposed to be separate paragraphs but it all runs together in preview. Haven't found a way around that yet.