Can you watch part of this Wpbsa coaching vid and give an opinion to me on Sighting

[Foxy147]

http://www.youtube.com/watch?v=Aor1dnndksU

11.45 into this wpbsa video,terry griffiths explains about the dominant eye and the need to cue up at one side of the chin,and also change your stance accordingly. ie right dominant eye,stand squarer(right handed player).Many top pros cue up under the dominant eye...ronnie,robertson etc.
Just watched the video and realised i am right eyed,and now going to try squaring up my stance and cue to chin etc.
What are people opinions on this(terry,nrage for example)
I was always a good player,very natural,107 break years ago when i played alot with Paul hunter in leeds at the northern snooker centre and star snooker,but it was all in the head wit me and my temperament wasnt up to it!!!!

[nrage]

I have tried the test they mention and can get both possible results, all it takes me is a little effort and I can focus/select the eye of my choice. Perhaps this means I am even sighted, or perhaps this is something everyone can do? It's worth doing a bit of an experiment to see if eye/head/cue position makes any difference for you, personally. It is something I need to do myself.

[Terry Davidson]

I believe it's more concerned with what is the most comfortable set-up for the player's physique.

If a player has degraded vision in one eye then perhaps he should try and have the cue more underneath the other eye, but it's not really necessary to change the spot on the chin as the same can be achieved by just turning the head slightly to one side or the other (provided the neck can stand it).

This theory was first developed by people seeing Joe Davis cue directly under his left eye however Joe was almost blind in his right eye and there was just enough there to give him some depth perception.

I teach centre-chin to my students in order to get them into a good set-up however I have nothing against a player who naturally likes to cue under one side of the chin as long as he can get the grip arm shoulder, elbow and the grip itself somewhere nearly or on the line of aim of the cue.

In addition the centre-chin position will provide better depth perception no matter which eye the brain chooses to use for aiming. I use centre-chin but turn my head slightly to the right (a little easier on my neck muscles and upper spine) which does bring the cue more underneath, but not directly beneath, my left eye which after my eye surgery became my preferred eye. Previously my right eye was my preferred eye and I cued exactly centre-chin with no turn of the head, but of course I was a little younger then.

I believe the danger in the theory of cueing under the preferred eye is if a player does not modify his set-up to compensate for this, as Joe Davis did and as a lot of the pros do today. Neil Robertson is a good example if you can find a head-on video of him on youtube.

Terry

[ace man]

I have another question concerning the grip from the same video Foxy posted. Are my eyes deceiving me, or does Terry G.'s cue rotate a bit on longer backswings? I videoed myself recently and my cue also seems to rotate, releasing three fingers seem to contribute to that. My cue turns nearly half a turn sometimes. I try to be smooth and loose, but it was a shock to see this. Now I'm even more surprised to see a world champion caliber player do this. Comments?

[nrage]

I have another question concerning the grip from the same video Foxy posted. Are my eyes deceiving me, or does Terry G.'s cue rotate a bit on longer backswings? I videoed myself recently and my cue also seems to rotate, releasing three fingers seem to contribute to that. My cue turns nearly half a turn sometimes. I try to be smooth and loose, but it was a shock to see this. Now I'm even more surprised to see a world champion caliber player do this. Comments?

I recall seeing cue rotation too.. but, was it Terry or someone else, as there were several players being filmed there.

[Gallardo26]

I used to played with under my dominant eye years ago. Accuracy was dead on.
Months ago I struggle where sometimes i can see the line of shot nicely and sometimes don't.
while sometimes it seems I am dead on to pot, but when the ball rolls there, it was totally off.

Then I came across Nick Barrow's video on the dominant eye problem. I learn from that video as what Terry had said, the depth perception, where our eyes uses both to perceive the depth. This is where months ago I suffered from "the black ball syndrome"...
I aim the line of shot to the center of the ghost ball and estimate the contact point of the black ball.... while having the cue under my dominant eye... which always miss and hit the jaw.

After i changed to center eye, I was able to do that and estimate properly. I believe its like a parallax error if you get what I mean.

I am not a High break potter, but after I changed to center eye cueing, my game has been quite consistent.