I treat all shots like their the same and with the TOI Technique
I am definitely interested in why you should watch the ball go into the pocket before you get up. I have recently stumbled on some of what you are talking about with TOI by myself. Its a really long story how that came about so I won't elaborate, but needless to say, I play a lot of pool.
Pool, like life, is a series of adjustments, nothing really stays the same, so they go up and down. When I watch the ball go in the pocket it tell me how to adjust for the next shot. If I hit either side of the pocket I adjust so I'll hit the center on the next shot.
I treat all shots like their the same and with the TOI Technique I can. I don't think there's any other way to do this because you can make any shot and get any position using TOI, therefore you can MAKE the shots the same. Of course if you con't know how to do this the shots are all vastly different, especially to beginners that have been told there are thousand of shots in pool.
I see even advanced players start a match playing incredible, and run out every time....however, they're slightly off center and in time this will produce a miss, then another. If they don't know how to adjust their game will decline and they may even lose that match and not know why.
I am willing to adjust (slightly) to make sure my shots are always calibrated to the center, even if I'm making the balls I'm not satisfied unless they are hitting center.
With the TOI Technique if I"m hitting center that means I MUST be aligned to the INSIDE of the pocket and slightly deflecting it into center. This creates the 3 Part Pocket System and gives me maximum margin of error. This is what I MUST do to compete with the greatest players, I must be willing and flexible enough to adjust BEFORE it's too late.
'The Game is the Teacher'