Hope you got some good information from all of this. Call YOUR strike zone.
As several have noted, where the ball lands is inconsequential. A pitch with a lot of arch can land 2 - 2-1/2 feet behind the plate and still come down a foot behind the batter's shoulder - hence the common, and incorrect, term "deep." When the pitch went past the plate it was above the batter's strike zone - BALL.
The arch of a the pitch has a lot to do with where it might land after crossing the plate. As described above, a tall arched pitch has got to land pretty close to the plate to have gone through the strike zone. On the contrary, a pitch that barely rises above the batter's head can cross the batter's waist and be caught two feet in the air by the catcher. It went through the zone and is therefore a strike. Location of where the ball hits is superfluous.
Stick to your guns and recognize that you call the strikes - not the catcher, not the pitcher, not the batter, not the idiot bystanders... just you. Invariably, you will have to put up with the occasional dork that wants to question your calls... ignore them and smile. They will eventually get the picture or you can eject them. Just smile to begin with "Na. It looked pretty good to me." Be in charge.
