What am I missing with that height mic reading?
Looks like 2.200+

No experience with the coated valves, but I can tell you that big springs/Ti valves/50*/Indy seats didn’t get along well at all.
Someone sent me a set of 572-13’s that didn’t have all that many runs on them to freshen....... and the valve faces had worn/eroded very badly.
Several had absolutely no margin left at all and were like razor blades.