Hello Mark and Steve, I’m having the same issue with saggy floor boards on a Mk2 1990 – to the extent that they slip out of the supporting groove on the side of the centre board housing. Also, most of the screws around the edges are of different ages / sizes / degree of decrepitude (!) so what would be the standard size screw to replace them with? Given that the fibreglass isn’t as strong around the holes as it might once have been. Presumably, I just need to add some reinforcing ply underneath to give greater rigidity? Any guidance would be really appreciated as somewhat of a newbie here!