Well, after reading many tidbits about the pros and cons of cheap chainsaw sharpeners, I opened up my HF unit. I looked it over more closely and decided that I just want something a little better than it. Blains Farm and Fleet had the Timber Tuff Chainsaw Chain Sharpener for $109.99, on sale from $139.89. So, I picked it up. It's the same model that the store's small engine shop uses to sharpen chains. I had one chain sharpened by their shop and it was good.