That is an outstanding question, thanks.
It is impossible to influence the cb after it leaves the cue tip. I agree with you.
There are three factors, not two, at the moment of impact, however, tip contact, shaft angle,
AT THE POINT OF CONTACT, the direction the cue stick traveled into impact and the shaft angle are the SAME THING. What is so difficult to understand here?
Granted, the follow thru may result in the shaft veering off one way or another but so what. You yourself said " the cb doesn't care about post-impact cue
stick movement." What we're dealing with here is the 2 tip contacts in the diagram in post 98. According to you they result in different CB action. It's not magic.
There is no "third factor". At the moment of contact you either hit down with the corresponding CB action or you hit forward thru with it's corresponding CB action. You can't do both. Well, maybe you can, but I can't.
It is impossible to influence the cb after it leaves the cue tip. I agree with you.
There are three factors, not two, at the moment of impact, however, tip contact, shaft angle,
and the direction the cue stick traveled into impact.
AT THE POINT OF CONTACT, the direction the cue stick traveled into impact and the shaft angle are the SAME THING. What is so difficult to understand here?
Granted, the follow thru may result in the shaft veering off one way or another but so what. You yourself said " the cb doesn't care about post-impact cue
stick movement." What we're dealing with here is the 2 tip contacts in the diagram in post 98. According to you they result in different CB action. It's not magic.
A visualization can help you understand the third factor. Imagine you have elevated the cue stick to 30 degrees above the table for a jump shot. Now bring the cue stick forward gently, so that the cue tip comes to rest on the cue ball impact point--using the two factors for the jump shot, the tip contact and the shaft angle that you mentioned.
Next, broom or push the cue stick forward rather than down into the cue ball, so that the cue ball rolls forward rather than jumping into the air.
There is no "third factor". At the moment of contact you either hit down with the corresponding CB action or you hit forward thru with it's corresponding CB action. You can't do both. Well, maybe you can, but I can't.