Buoyancy can't use more than 2 pontoons

Yes it does.
Sorry for the delay

Hey chris, i stuggled with this same issue.
I fixed it with 2 solutions.

first - I replaced socket references with actual locations (this fixed my 2> pontoon issue)

second - the actual transform/centre of the mesh is important for the bouyancy. So i fixed that.

After i did these two things, it worked for me. hope this helps.