Today I used my new Rupes 75E with 4" pads on speed 5, it sheared two pads off the Velcro. I am thinking the pads are to much weight/volume at that speed, so they shear off the Velcro by tearing apart the cells at the Velcro attach point. Now I think the microfiber pads would be the answer for removing swirls at speed 4 to 5, otherwise they would not be advertising it for removing swirls with 4" pads. Feed back please