The dealers that use automatic chain sharpener machines... do they even touch a raker? And their sharpening might be suspect for sure. I know a dealer who does them uber fast; I doubt his output is grade A. So, wondering... are there people in your area that sharpen chains by hand for hire? I don't know anybody around here but haven't looked. From lots of threads on it, there are people who claim they get a chain filed by hand really sharp! I wonder how you'd even find somebody like that; dealers wouldn't want the competition. Maybe Craigslist but I've never seen an ad for that here. Granted, this is not a big chainsaw state.