Originally Posted by Dom Heffner
If you have to wait to see if it's routine, it isn't routine.
The rule is for the runner, not the SS.
Your interpretation of the rules is incorrect. I don't know how else to say it. But that's not how umpires are taught to enforce the rule.
The umpire is taught to wait, and if at any point before the ball drops he believes the ball could have been caught by an infielder with ordinary effort, then it's an infield fly. He only has to make the call when it's apparent, and it does not have to be apparent (so long as the infielder is giving an ordinary effort) until right before the ball drops.
Jogging or back pedaling is generally considered ordinary effort by interpretation. That's how it's always been taught in classes and how umpires judge effort. If an infielder doesn't have to sprint to the ball or isn't going to have to lay out to get under it, it's considered an ordinary effort. You're not arguing with me, you're actually arguing with how umpires are trained to enforce the rule.