This is getting off topic but I believe pop time should be timed from sound of ball into catchers glove to sound of SS slapping 2nd base. This would incorporate the catchers accuracy into the equation and give a better metric to evaluate the catchers overall value.✔
( have known several tb coaches who were timing catchers pop times from when the ball was coming out of the catcher's hand. Supposed to be from contact!)
If the throw is 5 feet high and 3 feet wide, how long would it take for the SS to get glove in position to tag the runner? .5 second? So now your 1.65 pop time would become 2.15. Not so good anymore.