Re: Sanding Film - Undercutting the Tip
I got several pieces of the mylar (?) backed sanding paper from Jim Poe, a retired Ford Motor Company plant manager (I believe) where he found the stuff being used in the painting process on auto bodies. Actually got my first bit (about a 1 inch square) directly from mark Popkin several years ago and used it until I misplaced it. Stuff never wears out or gets too gummed up to use.