Only posting here because some may not know, and it doesn't fit another active Forum.
The ABS strike zone is subject to the any part of the ball nicking home plate surface place elevated to the individual batter's biometrics.
So in its simplest form, Home plate is theoretically 22.8" wide, assuming a 2.9" diameter standard baseball.
I think this is a good innovation because it potentially takes the hack umpires (Bucknor ) out of determining the outcome of a game. Players ( Batter, catcher, pitcher) will need to be judicious in using it because 2 mistaken challenges ends the option to challenge further.