There was an article not too long ago about Pitch/FX and the reliability of it's data. The end result to me was that the Std Dev was too great in terms of inches both vertically and horizontally for me to even care about it anymore. FWIW...just about nil, IMHO. A standard deviation of inches seems shocking to me; not questioning it. To my average eyesight, it looks as though the computer takes note of pitch location in relation closer to where it's caught rather than where it crosses home plate. Maybe my timing is off but the location shown is always off a little bit to my eye when they show that in slow-motion.