I believe that Al D'Arco was well into his fifties when he got made, and he had a very fast rise afterwards.
He most likely had mafia connections by his forties, but then again everyone has at least tenuous mob connections by the time they're that age.
D'Arco was another moron who had been a connected guy since his early twenties but only got made when he was fifty years old. Just a fucking shit earner like Rooster.
