I was sitting in the back while a friend of mine that's fairly big drove yesterday, and noticed more springiness in the the seat than I have seen before. Looking closely, the floor is actually the issue. It appears that the bond to the stringer has failed, and it allows the seat to move around when accelerating, hitting waves, etc. Has anyone had to fix this? I could use new carpet, but I'd really prefer to wait til next winter to pull it up and start investigating.

I'm considering just building a new base for the seat out of 1/2" PVC that will spread out the load better. I never liked the looks of the pedestal on these boats anyway - lots of stress in a small area. I could also raise the seat a few inches at the same time.

What is the core material of the floor and stringers on these boats? Anyone know the measurements of the stringers? Maybe just some longer bolts in the seat would grab the stringer.

Any other ideas?