CK-4 oil

Question: What is considered acceptable Zinc levels in oil when new? I understand that it changes based upon mileage, tempos (?), duration and a number of other reasons.
Perhaps it is too early to know at this time but are there reasonable numbers based upon average miles and duration used. I.E. Blackstone uses "universal averages" on their samples and I believe that is based upon a vehicle with the same miles, hours, usage etc. (?).