[Crex]

Dremel with a cut-off disc with light feathering cuts if the above suggestions are too difficult/hard. Just don't try to pressure hog the cut. Jim's right on keeping her cool, you can actually cut it with the Dremel lying flat on a wet rag. Like Ray's idea of sharpening the leading angle when you are through truing it up.....call it a "Tactical Cai".