Originally Posted by ANiznik

what i do is keep a old spur gear and a sheet of 400 grit sand paper, then put the slipper pad in between the two and hold down the sand paper while moving the spur with the slipper pad in between the two. that way your not sanding your fingertips. it only takes a matter of seconds per side of the slipper pads! wish i could take a picture of it, hope u get the idea. oh and yes u will be sanding a little off the outer section of the gear, thats why u use an old gear. pretty much the same process as sanding diff rings using a old female outdrive to hold the diff ring in place while sanding!