As to the black on the plates, yes it is there. My point was that it has absolutely nothing to do with the strike zone.
Agreed. We use it as a target more than anything else. The less white the ball touches the better. Too much white and it is likely to go in the opposite direction for a couple hundred feet.
Most times when DD is hitting her spots she gets the call. It's a good day anytime we can stretch the zone out.