I am now convinced from my "how to thinly slice meat" thread that my knives need sharpening. Looked at the videos, looked at prices for stones, and decided to look for someone to do them for me! Called two knife sharpening services (to date) in Omaha, and found that both of them use emery cloth belt sanders to sharpen knives. Is this good, bad or indifferent? Prices seem reasonable enough at about three dollars per knife, but so far have seen no threads on using belt sanders for sharpening. Appreciate opinions.