As a youth baseball umpire, the biggest hassle is the strike zone. According to the rule book (MLB on down), the strike zone is knees to armpits and any part of the ball over the plate including the black. In youth baseball, the whole zone has to be called or it's a walk fest. But to call a chest high strike in the majors or even high school will make coaches and fans lose their minds. I would welcome the robotic strike zone, one less thing for the umpire and all he/she would have to do was keep track of the count and call plays at home. You could even go single umpire in youth baseball and just put one behind the pitcher to call the bases.