I started tearing down the floor today in my Gillig LF. After a couple hours and experimenting with different tools there was almost no progress. The rubber glued to the ply really well. Someone suggested cutting the ply with rubber all together. I tried it but there is nothing underneath the ply (besides the frame and some pipes/wires). Plus the plywood looks absolutely perfect - very even, zero water damage. Much better than anything you can buy at Home Depot. Should I just leave it alone and insulate on top of it?