Do any of you sharpen your own grinder knives? I've always been under the impression that it couldn't be done, at least not by the average guy. I do it anyway and have had pretty good luck with my results. All I do is clamp a knife into my vise, and with a 6 in. mill-bastard file, lightly file on the bevel side of each blade of the knife. I strive to maintain the original angle very closely. Then I hit it a few licks with a small stone. I don't touch the "face" of the knife, the part that runs against the plate. I can definitely see a difference in my grinding after this touch up. Of course, I've not done anything to my plates, however, I am inclined to think if you had a very flat, large enough stone, or a machinists granite plate and some fine emery stuck to it you could hone them down a bit as well. Anyone else had any success with sharpening either of these essential parts?