I recently picked up a 1992 Crownline 196 BR. There is a soft spot in the floor on the side of the ski storage area in front of the captains seat. When the boat is in motion and turning to the right it feels like the floor is flexing with the hull. The floor on the other side is solid and doesn't seem to flex at all. I am prepared to replace the floor, but could the flexing be a sign of more extensive issues? Thanks in advance.