Sorry mobile lasers on the ball, or in the ball park.
That creates further issues, what if a laser malfunctions, what then, have the at bat again due to technical issues? We are talking about 14 stadiums a night with about 300 pitches thrown for 6-7 months out of the year. If a laser is measuring the knees of the player even a single deviation point could drastically hurt the integrity of the game? What about calibrating the laser from stadium to stadium? Or the laser not being able to read the player in particular circumstances. What then? What about a ball hitting the catcher's glove and the chip malfunctioning, is the ball going to have a functioning chip indicator, how will that effect the trajectory of the ball? Are we going to use new balls, every single time to ensure a ball hasn't been damaged by the catcher catching the ball.
The amount of technical issues are overwhelming.