I meant to add a comment--I know many people are talking about injecting resin or something into the hull to bind the foam to the fiberglass, but the surfaces just don't seem to be able to be prepped well enough. In all the hulls that I have seen cut up (and it has been a few) the 'foam' does not seperate cleanly. There is a thin layer still attached to the fiberclass shell and there is a gritty or powdery residue all over the place between the layers. It seems to me that you really couldn't get a good bond between the two due to the unclean surfaces!