I have a 1997 200 Osprey with a 150 hp Evinrude Ocean Pro. I also have the extreme floor flex that you are talking about. I hope these spots are not true weak spots, yet just something in the design. I have owned the boat since '02 and they have existed since then. They do not appear to have gotten worse so I am not worried. As far as the foam issue, I was told by the dealer that the boat is foam-filled, but I would like to hear from someone else on both issues.[/b]