I never went for the pool scholarship either. They have to play for up to 12 sim hours? They are ready when they can perform the trick-shots, I imagine. (I seem to do that a lot lately, answering my own questions, I mean
)
Or you could have them perform trick shots. Pause the game, queue up as many trick shots as you can (you can't add to the queue if they are already using the pool table) and let them do their thing.
This study done by Posie might interest you. Alternatively, if you don't mind cheating, enable debug mode and shift-click on the pool table for instant pool skills
.