1 hour on the ball machine with no breaks!
3 sec feed = 1200 balls (max)
6 sec feed = 600 balls (max)
12 sec feed = 300 balls (max)
Last night we were using a mixture of ball feeds for different practices so in the first session ( beginner / improver ) hit at least 500 balls!
The second session (advanced player ) hit at least 750 balls.
Now that is what I call "Practice" !