From my experience it can be learned in less than 3 hours, fine tuning and making it natural takes 2-3 weeks...... it's deceptively challenging to set the body position first because of the precise footwork required...... mostly because of past programming, like riding a bike it takes repetitions, always striving for precise, consistent foot work, balance and alignment.
The Game is the Teacher
In my opinion, this paradigm shift is literally game changing.
Each context has one thing at the top of its evaluation list.
That criteria, in the case of those who fixate on finding the target line, is the shot line.
Years ago when learning I was introduced to the idea of developing a stroke by laying a pop bottle down and learning to stroke into the neck to train a straight stroke.
On the surface that idea seems to have merit but through the lenses of finishing strokes, the training stunts a natural good penetrating action.
In training sessions, coaches talk about the failure of players to take skills learned in practice into games.
Introducing another paradigm shift my solution is to take the game into the practice, a reversal of the normal drill context.
The soda bottle idea emphasized the straight stroke but lacked the ability to bring the game into the practice.
The paradigm shift of taking the shooting context and putting the straight stroke at the top of the criteria list of importance, relegates the shot line down a notch but preserves its integrity.
CJ brought more than a cueing concept, an inside stroke, paradigm shift, largely because it avoided center ball cut induced throw problems.
A second paradigm shift, cue stroke straightness as the top evaluative criteria to bring into the execution context, was the second.
The trifecta paradigm shift was replacing the center ball margin of error concept, where 2 different margins are used, each addressing a different error, one to the inside side of the cut angle and the other to the outside.
Each of them is from the perspective of a bridge on center line, creating a new shot line, plus adding side spin.
When center ball players need side for positional purposes they need adjust their aim line in advance to account for deflection and spin dynamics.
The undercut line, combined with a small inside cue line offset are the adjustments made BEFORE the shot meaning the entire pocket width is receptive to the same range of cueing errors that can result in center ball misses.
Thanks for sharing your knowledge.