I purchased a "Garrett Wade", Italian made chain sharpener about a month ago. I have 8 chains under my belt so far, with mixed results. Granted, all chains had been fairly beaten up, but my questions pertain to the sharpener.- Has anyone used/ bought this sharpener? Is the mainshft supposed to have any "slop" in it? What constitutes a good grinding profile on the grinding wheel?- This tool does not offer a mitre/compound angle adjustment, but rather a fixed radius/mitre adjustment only. The reviews were good of course, and I have to admit that it worked quite well for a few of the more chipped-out chains, but a fresh cut from this sharpener only equals a slightly used factory cut tooth. Anybody, any thoughts or experience with this sharpener? I have time left to return it under warranty. BTW, it cost approx. $90 to my door, incl. extra wheel.