If you permanently marked one of the numbered chuck jaws, then marked the tenon on a workpiece next to it and rough-turned it, and took it off the lathe to dry, then came back later after drying to finish turn it, and placed it in the chuck jaws as before, wouldnt it be pretty close to true? WHEW, I am out of breath after that long sentence.Have I revolutionized the procedure of turning a workpiece?