The torch trick works well, but use a low flame and don't linger on one spot anymore than necessary to singe the fuzzies, or you will end up with charcoal. DAMHIKT
Another thing I have done is to use abrasive buffs in my Dremel. With a very light touch and low speed and it cleans up fuzzies without damaging the piece.
I use these tricks most when cutting with spiral blades. For normal fretwork, FD-UR seem to minimize the tearout on the back better than other reverse tooth blades I've used.