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Wasn't going to respond, but since you quoted me, I figured I'd respond. It's not any more different from a NHLer getting a couple of passes between periods. Both home machines on the market can be used to establish a hollow, but the key to longevity (and optimal performance) is to refresh the steel constantly and not let major trauma develop. It's actually the ones doing full grinds all the time trying to remove major nicks who are replacing their rings more often.

Difference between a refresh and a full grind. We’ve already been over this