consistency on low pitches

[DG]

The bottom of the strike zone is the knee, the bottom of the knee included. The ball is over 2 inches wide and any part of the ball passing through the strike zone is a strike. So call the low strike when you see it. The pitchers are trained to "keep it down" so don't squeeze the down part of the zone. The pitchers are trying to throw it so call it. If consistently called, no one will argue they will just adjust. It does not matter the level of play, just the height of the players.