[Adam]

My point has nothing to do with whether your approach makes sense. My point is you cannot do what you're suggesting, by rule. If the NFHS wants it (and the NCAA), then they should add it. Lord knows they've had time to do it if they want. They haven't.
To answer your question. I'd leave it on, because there's no rule that allows me to take any time off there.

Now, I'll address whether it makes sense (aside from the rules.)
It doesn't. The time it takes to catch and shoot has nothing to do with the time it takes a punched ball to travel out of bounds. They're two completely different acts.

Now, to the