No access to that file. It was Lucchese soldier John Caputo who controlled Joe Stabile. Colombo soldier George Tropiano paid for Stabile to look for an informant in the Connecticut crew. It was never finished cause Caputo was arrested in 1977, and Stabile was arrested later. Stabile gave Tropiano clues about the identity of the informant, and it is widely believed Stabile told members that Ralph Tropiano had cooperated with the FBI when he was locked up, but stopped when he was released and refused any further. Cutulo was at a bar owned by a relative of John Caputo when Stabile came to inform him that some of his associates were going to be arrested. That is as much information as I know.
Would like to read that file from Mary Ferrell.