I remember doing that in my younger years. Been spoiled to digital readouts since 1980 on my mills. And I still use my Starrett edge finders to zero in on a edge. And I still forget to add/subtract for the .100" on setting zero in the readout!.................snip..............Count my handwheel turns. I'm consistently holding .001.
Reduce error wherever you are able on critical parts.
MN
taught me how to use an edge finder and offered this advice, "Set your dial at 100, and remember to move it to 0." I've still messed up and been .1" off.And, the older you get, the more often you get bit
Ted