Gerry Davis Mechanics

[CecilOne]

A) Of the few things I remember from scouting and military training is that when searching for a moving object, keep your eyes/head still and when searching for a stationary object, move your eyes/head. I'm sure some will say this does not apply, but it does in concept and physics.
B) Another thing learned above is to set your position and hold it.
C) My best results come from a consistent position in the slot, dropping to the top of that batter's strike zone so I'm stationary before the pitch arrives, focusing only on that batter's strike zone and calling the pitch after it arrives without regard to what the catcher does or doesn't do.