Spoke to Earl about his aiming system and no surprise he doesn't have one. However, his system is playing for 40 years plus and repetitively shooting the shots so that when he get down, he'll already understand the shot and just let his experiences (Subconscious) do the work (including adjustment for squirt, throw, etc). Basically he understand the shot before he get down and shoot. He doesn't look at a contact point....he just get down and shoot. I think his subconscious already know where to aim so his focus is on either the speed of his stroke or adjustment of his spin for position.
The Key to Earl aiming is understanding how to aim with your playing cue.
Every shaft is not equal...even the LD shafts...so you need to understand what your cue is doing before you can start to learn to aim. This is probably the most frustrating things for someone who teaches pool

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When I teach my aiming system to local players, the goal is get the player to understand how to find their center with their cue. Once you find your center, you'll learning to build on your fundamental skills and will have the basic foundation to start to learn how to spin the ball and start making adjustments to building references through repetition that your mind is able to recall faster to help cut your learning curves.
It's no secrets that you have to pay your dues on the table to get to a certain levels. Aiming system is not a magic pill but it's objective is to help a player cut their learning curve to become more consistent player.
The key to most aiming system is about building reliable references that your brain can relate to faster. Eg. Ghost ball method (imagine point of contacts), point of contact on the objective ball (you have to guess) vs a dynamic reference point that you can use reliably and depend on. Main point on this is that your brain will be able to build more reliable reference on a dynamic tangle point of contact vs some un-tanglible point of contact. What took Earl maybe 10 years to learn could have been reduced to 2-3 years for him to be proficient at aiming with his Subconscious because the references he's building over time is more reliable so it take less time for your brain to make it instinctive.
All the pro players..do not use any aiming system....they may have in the beginning but eventually every and I say "EVERYTHING" become instinctive with these guys. I mean, they think about pool everyday, night and day...they plays for 6 to 12 hours everyday....it's in grain in their Subconscious. Everything they learn will become second nature to them.
So the goal with my system is try to help you get to that level (what ever it may be...it ultimately comes down to you and how much you want to sacrifice) and become instinctive player where you mind does the work for you.
Looking at David's video, it clear to see that he uses his eye to validate his shot. Once you play enough and hit enough balls, you should already have built your system of references...now all you need is a method to validate/visualize and then let the mind/body take the shot.
Aiming is a 2 step process, in the first step....aiming system will help as you learn to trust your stroke. The second step is all hard work (using your eyes) to validate and visualize so that your mind can enter the "dead stroke" zone. Once you in dead stroke...you'll feel like your stroke is effortless and when you shoot...you level of confidence is so high...that you know the ball is already in the pocket before you shoot. The key to high level play is been able to get this state repetitively

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I personally can't sacrifice the time to get to that level but I know what it takes to get there.
Regards,
Duc.
"Now, if one watches Earl, one will notice he only walks behind the shot line to look at the contact point on the object ball in certain situations, nothing to do with the difficulty, let alone a certain type of shot. He's that economic. Needless to say, economy is another sign of a great player. I have no doubt it's part of what won him his many titles.
Greetings from Switzerland, David."
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