Pitcher missing a finger

How would it change a pitch’s movement if the pitcher is missing a finger? How would it change if they’re missing the ring finger vs. middle finger?

This guy had an amazing curveball apparently. He’s missing an index finger though.

That’s nothing. Jim Abbot was missing five fingers!

Mordecai “Three-Finger” Brown was reportedly a star pitcher early in the 20th Century whose effective curve ball was due to missing parts of two fingers on his throwing hand.

Well, what we do know is that having six fingers on each hand doesn’t have an effect on pitches…