Sanding down the blade!! What a GREAT idea. Three quick questions:
What "Dremel" tip is best?
Are you somehow able to smooth out or polish the picking surface after sanding to keep it from scraping or "grabbing" along the string?
Do you sand just the back of the blade, the front, or both sides? (I realize we're talking about a bevel that is only a tiny fraction of an inch, so it may not matter.)