A good stroke has a few factors to it.
First is the knowledge of exactly the spot on the cueball it needs to be struck to get the action you want.
Second is the intention to strike that exact spot. Watch a pro address the cue ball with their tip. They are signaling and affirming the intention to hit an exact point on the cueball, not some vague zone high-ish or low-ish on the ball.
Third is the ability to deliver the cue to that exact point on your final delivery. Not accidentally a little higher or accidentally a little lower. And that needs to hold up when you hit it a soft or you hit it firm.
There are some aspects people focus on because they contribute to the success of that THIRD aspect. A good follow through, m a loose grip and staying down on the shot only serve to make sure you don’t introduce any unnecessary muscle tension and body movement that causes you to accidentally hit somewhere other than where you intended.
But given the way the question is phrased, I suspect the real issue is that you neither are satisfying the FIRST nor the SECOND aspect. Without knowing where to precisely strike and the intention to only strike exactly that, your stroke delivery is meaningless. You have no way to know when you’re getting it right or getting it wrong. Your feedback loop is all messed up. It’s impossible to have a good stroke with draw but not force follow. Inconsistency is the definition of a bad stroke. And the root cause of what you’re troubleshooting is mental.
Fix that (get laser focused on your intention) and the physical part starts catching up...quickly. At first it’s hard because you’re building a new ability (extreme intention). As you first build it, it’ll tax your brain and you’ll play worse. Stick with it and your brain will adapt to the strain and it’ll start being able to maintain that extreme intention with no effort at all. It’ll become second nature to always know where the tip is contacting the cueball.
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