crashin12x wrote:How about for the lefties who have few or none at all in the pair except him/her? What other things he/she should be watching aside from the ball motion down the lane and the way the ball enters the rack?
If I am understanding Rob's OP, for the purposes of this exercise it doesn't matter which side you bowl on. You are not trying to determine what you're adjustments are going to be (I mean, hopefully you ARE, but...) You are trying to train your brain to watch what is happening on both sides of the lane and predict what will happen to the bowlers on your pair.
If you're in a league where you really get to know the bowlers (especially your teammates), you will figure out who is going to make some sort of adjustment more often than not, and who is going to keep throwing at the same spot and come back angry and confused when it stops working.
I would think the ultimate goal is indeed to get better at predicting when you will need to move even without that oh-so-helpful trip-four (trip-six for y'all) or mixing strike. But you do this by absorbing (in this case, learning to predict) what happens on the lane no matter what side, what skill level, what rev rate and line, etc.