Thumbnail rub won't show grain on board stock, try flexing it instead.

Dave knows his stuff. Had the same thing happen on a Haas where the wear offset wasn't showing right after a tool change, screen said we were dead on but the first part came out .008 small on the bore. Started doing a test cut on a scrap slug every shift after that, takes 30 seconds and saves me from scrapping a whole run. Old timers earned those habits the hard way and we get them for free if we just listen.

Wait, a warehouse off Pulaski Highway? That's wild, my pops worked that same stretch back in the day. Small world.