I had my stock seat shaved on the sides on my 1500 way back when. It really helped. The guy did the work at Wing Ding 1997. He removed the necessary staples holding the seat cover to the seat pan (not all). Then with an electric knife (turkey carvery) he sliced enough to round the edge off. He did not carve any out of the seat bucket. Then he stretched the cover tightly back into position and re-stapled it.