This is just "my way",,,,,it's not the only way by far, but it works for me
I use the "old musty books" without many pictures, the books on the subject that came before, and the Navy Historical center to sort out some of the conflicts,,,,,,sometimes by combining the sources I can find cruises that one source skips or says "no cruise for that date"
when a photo is captioned in a book,,,,you can look at the BuNo to sort it out,,,,if it says 1966, but that plane wasn't built until some 1970 block of production,,,,,,that's an oops
or when it says "F-4J in Ferris camo",,,,,and has a nose sensor and AF serial on the tail,,,,,sorry, but that's an F-4C or D
one online source says "no cruise for Forretstal in 1976",,,,,but, everyone and his brother remembers the Blue tailed F-4J's at New York Harbor during the July 4th festivities,,,,and the rest of the wing's colors, too
mine is easy, though,,,,,,the only "guesstimates" I have to do are with things that started after the 1st of the month and ended before the 30th,,,,,,LANTFLEX's and the like
I go by the rule of thumb that ordering pics cost $12 each from people that sell them,,,,,,so if a book costs $36, it only needs to give me 3 new pics,,,,,anything more than that is a bonus,,,,,,,,and I'm not afraid to write in the margins in red sharpie
all ties are broken by using the primary source,,,,,,,and even my method is limited to 1945 to about 1984 or so,,,,,after 1984, I have to use a little trust
hth
Rex