to help smooth thing out at the company I work for we use a grinder with a brand new 4" 80 grit disk to lightly smooth the surface. you would be surprised how easly it shapes the foam without tearing chunks out of it, here is mine after the same process(I used 1/4" though) I used a heat gun to soften the vinyl and glue bond and than added 1/4" hd foam to give back the padding that it lost due to age. sprayed contact cement on both the foam and vinyl let dry for 20 minutes and using a heat gun for the tricky corners, it wasn't easy but it did come out really nice in those hard to do inside corners. this pad has been on the car fro 1 year now and still looks great, so I'm happy!View attachment 1715127047 View attachment 1715127052
