Very nice HD, I purchased a Craftsman 42" belt/disc sander combo and some 1" belts up to 600 grit I believe from Pop's. I have used it mainly for kydex sheaths so far but was going to try to learn grinding blades. One main question I have is what kind of belt speeds do you run. My set up is one speed and it seems pretty fast. Do you pro's use a variable speed and slow it down? Any other words of wisdom for a wanna be steel grinder?