I am going to look for a local person to do my table saw blade sharpening. My strategy is to try them out on a less expensive blade to see how the quality is before letting them have my better blades.
But I want to "screen" them even before giving them my less expensive blades. I would hate to have any blade ruined by someone who didn't know what they were doing. What questions should I ask them up front so I can eliminate the hacks?