All right... But where do you begin? Then where do you go from there?
Suppose you are breaking a tight rack exactly as op described. You are trying to make the corner ball but it keeps coming out high towards the side rail. What adjustment do you make? No gaps allowed.
What does a softer or harder break specifically do?
What does a cut to the right or left specifically do?
What does moving the cueball to the left or right specifically do?
I think this sis what the op is looking for.
This right here is the essence of pool, of learning for that matter. If a player wants to know this, they can spend time trying multiple variations of xyz. Keep notes, either on paper or in their head. Are their predictions supported by their data (notes)? If not, try something else.
Same thing for any shot under the sun
