That's how every athlete does it. I don't know why pool would be any different. I don't know any sport where the athlete says, "Well, my fundamentals are perfect, so I'll just do other things." You're always practicing them. Even when you're not practicing them, you're either reinforcing good ones or encouraging bad ones. When you find bad habits creeping in, or when you're off your game, you go back and do some simple drills to get grooved again. Who doesn't do that?
I have no idea who best to listen to. No offense intended, but I'm a very practical sort of guy and that question sort of borders on philosophy. I don't generally listen to anyone, at least as far as basic fundamentals go. That said, I did take my first lesson a few weeks ago since I stopped playing for a long time, and some funniness crept into my stroke. My stroke is generally pretty good, but he changed how I had my body aimed (I was very sideways...he faced me more into the aim line). It took a couple of weeks of practicing fundamentals (here we go again) to get comfortable, but I'm no longer randomly missing some easy shots I should never miss because it simplified my stroke a little and there's less that can go wrong. It's far more comfortable now too. If you're serious enough about the game to even be considering any of this, you're probably serious enough that you can tell when you're stroking the ball like crap and could use a bit of help from a qualified pro. I wouldn't let some random guy mess with my pool stroke anymore than I'd let some random guy try and adjust my golf swing.
If you're been playing for 30 years and you feel like your fundamentals could improve, why not improve them? Seems like it's something people should decide for themselves based on where their game is and what their goals are. Having a good coach evaluate you is a good thing. I was expecting my guy to shake his head and start over with me. Instead, I was doing it 95% right and I just needed a minor tweak to shake the cobwebs off. I'd still be randomly experimenting on my own if it wasn't for him.
It's funny. I saw SVB talk about his aiming system on a TAR broadcast. He spent a few minutes describing it, setup the shot, and promptly missed. I have no way of knowing but I'll bet that when the cameras went off, he spent a few minutes shooting that shot over and over again until he was drilling them into the center of the pocket, because that's what pros do. They know when you do something wrong, you'd better do it right a few dozen times to reinforce the right way of doing it. That's practicing fundamentals and we do it in every sport.
100% on board with this here. Good post.
I emboldened the last part, because I think some are under the impression that once good fundamentals are established, the balls will magically start falling into the pockets when they weren't previously. (ok, gross overstatment there, but indulge me for a moment).
When the pro's are continually practicing shots, (actual practice, not shooting the shot 5 or 6 times after a miss), the are not just learning to make the ball for that given shot. They are, every time they get down to shoot, checking to ensure that they are aligned properly, routine is the same, cueing the CB the same, and shooting in rhythm is the same. In short, they are re-enforcing the fundamentals that allow them to have the consistency of a professional player. For them, pocketing the ball is:
1) confirmation that the above were correct.
2) positive re-inforcement that doing those things will result in the desired result
3) helping with the visualization of the shot; both at address and seeing the ball fall in the hole.
Out of all of the three items listed above, 2 and 3 are most important to them, 3 more than 2. If they come to a situation in a match where they are faced with that shot, the fall back into the routine that was set during practice. They've pocketed that ball so many times, that the visualization comes very easy to them. There is no thinking about the alignment, thinking about the address, cueing, or stroke itself. They did all the thinking before, during practice.
Developing that "muscle memory", and I include the brain in this, to good, effective habits is what I consider good fundamentals for the more advanced players.
Of course, if you have habits ingrained which are negatively impacting your play, re-enforcing them in practice is only going to exacerbate them during match play. Build the solid base of fundamentals, re-enforce them through practice, and maintain them outside of practice during warm ups...should only take a few minutes to check them.
This is getting more into the "effective practice" side of the house, vice fundamentals. But I think one hand washes the other when discussing either of those subjects. Great fundamentals without re-enforcement through at least a modicum of practice won't really help as there won't be enough muscle memory for them to matter. Horrible fundamentals, (meaning poor habits), and much practice will lead to those habits becoming a full on hinderance to your ability to grow and improve as a player