Late in joining this thread.
Our local association uses the following guidelines for ASA and High School (I don't do NCAA):
1. Bottom of the ball at top of the knee (lowest strike)
2. Top of the ball at the bottom of the armpit/sternum (highest strike)
3. You will get generous corners belt high. In tournament play, you will get a strike in the channel/river, even with part of ball over chalk of batter's box.
4. Your corners will not be so generous if pitch is at upper or lower limits of 1 or 2 above. IOW, it can be too high/low to be an inside/outside strike.
This pretty much coincides with the diagrams illustrated by previous poster.
Our local association uses the following guidelines for ASA and High School (I don't do NCAA):
1. Bottom of the ball at top of the knee (lowest strike)
2. Top of the ball at the bottom of the armpit/sternum (highest strike)
3. You will get generous corners belt high. In tournament play, you will get a strike in the channel/river, even with part of ball over chalk of batter's box.
4. Your corners will not be so generous if pitch is at upper or lower limits of 1 or 2 above. IOW, it can be too high/low to be an inside/outside strike.
This pretty much coincides with the diagrams illustrated by previous poster.