I'm not sure it's a mistake because in every single testimony of his he mentions Halloween night 1975 and then there was 5 others with him.

I believe that too. There must be some families out there who dished out the odd initiation here and there, especially if good money was being brought in.

It must of being awkward saying to Don Carlo in 1975 "this is a friend of ours" about some guy who was born in late 1950s , his reply would be wtf you don't look old enough lol

A person could not be made unless the family had permission from the Commission. Otherwise he's not not a "friend of ours."

I'm on the theory that the books were closed late 1950s and opened back in 76 but they sneaked an initiation now and again

the oldest argument on the board. acoording to greg scarpa when carmine persico brother allie came home from prison in 1972 after like 15yrs allie was made. carmine was a hitter for carlo so he made it happen. turncoats casso from the luchese said he was made in 1974 fish carfo said fat ony and funzi tieri made him in 1974 he even sponcerd todays boss barney n for his induction in 1977 barney was like 20 21. george barone a genovese waterfront guy said fat tony made him in 1974. think it came up to the families boss decision, carlo gambino didnt need any new guys and after he died big paul made tons of guys. in dec 1976 into 77. oh and greg scarpa jr said he was made in 1975 by dibella the boss at that time

nice

On top of that you have:
Al D'Arco saying the books were opened in 1974 and 30 new Luchese guys were initiated (not him though)
Buster Ardito saying on wiretap in 1974 "they opened it up and and made everybody"
Joey Cantelupo saying Shorty Spero was made in 1975
Joey Massino testifying that he was offered membership in 1975 (but turned it down)

I could understand if one guy said he was made before 1976 that he might have just remembered it wrong, but there's so many people

yes that too ++