Turning your head calling strike

[KLooking]

When I call the strike I use a sort of ML style: I get up, turn my head to right and indicate with my finger an undefinited point in the air.
I copy this style from a lot of experienced umpire of ML as Randy Marsh, Joe West, and many others.


Yesterday I was calling behind the plate for a sort of LL game (9-12 years old).
I made a mistake with a call:

Full count, the batter foul tips into the catcher's glove. I called the strikeout but I shouldn't because the catcher dropped the ball on the ground so the scenario should call a foul ball with the same count. But I didn't see the drop because I was calling the K turning my head at my right side.

At the end of the game, my clinician said to me "NEVER TURN YOUR HEAD AWAY FROM THE PLAY!!!".



What do you think?