In other sports (Basket ball, foot ball, baseball) I have good hand-eye coordination. In pool, however, I had the HARDEST time pocketing balls - I learned the cue ball and the 'right shots' way before I started pocketing balls even decent.
About 4 months ago I came across a new aiming system, which is something that I don't think I can teach - I just saw a line going from the ball to the pocket and I didn't even really aim at that line, to me it kind of looked like when I was shooting the ball it was aimed into the rail, I just saw a movie of the ball going in the pocket in my head and when it felt right I'd shoot... this worked pretty good for me - I was pocketing balls at least 3 balls better than I ever had.
In the past couple days, however, after watching a video of Earl Strickland shoot, I started wondering "why does he shoot so good with the cue way under his right eye?" - I've always had mine centered, and most people I see shoot do the same - so I tried getting down on the ball like I always do, and I just moved my head a lot to the left, so the cue was under my right eye dominantly (which happens to be my dominant eye) and now the shots all look natural, I can just see the spot to hit that goes to the hole and shoot at it - but now I'm going threw the whole process of re-training my brain, right now it's confused sometimes when I shoot, because I know how it's "supposed" to look in my head.. I spent so long fighting the urge to hit where I thought I was supposed to...
I think it has something to do with how much sports I played as a kid, every ball I ever shot, basket ball, baseball, foot ball, they were all thrown from my right side of my body - so it makes sense that my hand-eye coordination would be designed to be accurate from when I'm shooting with the cue under my right eye instead of under my chin.
I'm by no means an A player - but I'd like to think I'm about as knowledgeable (play wise) as one.