Reading through a thread on the Cookware board http://chowhound.chow.com/topics/590727 confirms what I've known for a long time -- I know zilch about knife maintenance. I nearly ruined a couple of knives trying to sharpen them with a Chef's Choice electric sharpener. Lately I've been using a MinoSharp ceramic water sharpener, but, since I really don't know what I'm doing, I'm sure I'm not using it correctly, and don't even know if it's a decent tool. I think I need to go somewhere to take a lesson in knife sharpening skills. Is there anywhere in Philly's western 'burbs where such a class might be given?