As soon as I began to turn it I realized that something was wrong. It spins several foot long chips across the floor instead of producing nice rice-sized flake that I am used to. I run about 1000 rpm at 1" diameter and increase to 1200 or 1500 closer to the center. It does produce nice smooth surface but the chips look wrong. Anyone else got burned by ebay 6061 bar sellers? Did you ever get a refund for the wasted bars?