Thank you, CJ. I will try it.
So far I was able to practice the aiming method (which I think corresponds to the "B" on my diagram) in the Ultimate Pool Secrets videos and tried to incorporate other principles explained there. I suspect it is a prerequisite to your banking system.
So far it worked very well for me. After a week of exercise sessions or so I can probably pocket with around 80%-90% success rate any ball (cue and object balls not on rail) within 5-6 feet from the cue ball and cut angle probably up to 70 degrees or so. So now when I play I start thinking where to put my cue ball and how to prepare my next shot, not just how to pocket it.
Previously my success rate within this range was about 20%-40% or so and I was never in the position of planing my next move because pocketing a ball would be successful itself. The most difficult shots for me are across the table where I tend to over-cut (actually I tend to miss the ball aiming center-to-edge), so I will try to aim center-to-center like you explained and see how it goes.
What I do, instead of memorizing number of tips, I memorize the geometry: cue ball - object ball - target pocket - the far rail that goes out of the pocket and try to connect to the spot I need to hit the cue ball in and the force I need to apply, which I get from internal feeling (I use 3 strengths - soft, specially for side pockets and when I need to control the cue ball, hard - my default stroke, and extra hard if I need to bounce the cue ball some extra rails).
What works the best for me is not to think at all. The last time I played with someone I caught myself pocketing 4 balls in the row and I even do not remember how I did it, I just hit the ball and was able to succeed with where to place my cue ball next and did it 4 times in the row. Once I started analyzing what to do next I missed pocketing my 5th ball.
Thanks again,
Nick