Sanded the edges of the underside of the scoop.We originally thought that fiberglass matting would be enough but after a few attempts we put the matting on a piece of corrugated vinyl I had sitting around. We then I send the ends of the matting to the edge of the scoop. After drying we cut the hole in the vinyl and used slit vacuum line on the edges. I then attached foam rubber using loctite spray adhesive. It fit perfectly the first time. Can't wait to drive it.