I've never dabbled much in the pre-1900 players and especially not the "other" leagues - the really old AA - the early 20th century Fed
Can I generally consider players to be equivalent if their normalized # data is the same? Will a pitcher with the same # numbers in ERC, OAV, WHIP, HR, etc be about the same from 1897 as from 1927?
How about a guy from the AA - does the # data create a basis for equal comparison or do I need to adjust further?
any guidance much appreciated