Maybe I'm misreading this... but if you're referring to what fingers influence the pitch... and the fingers that apply pressure, they are a great cue when learning new pitches for pitchers... really not sure why this is so comical to a few on this thread... as it's a decent and sincere question.
I think there is a difference between which fingers apply torque to generate good spin vs adding slight additional pressure on specific fingers to generate cut. But maybe I just don't understand what is being asked.