I'm right handed. cross-eye dominant. I use both eyes, center under the chin, and don't really think eye dominance matters much for sighting. But what I think cross-eye DOES do is align your body differently than if you were same-sided.
Now after watching this video of Neils Feijen, I'm convinced that my elbow drop is fine.
There several reasons that having strong dominance is a good idea...
The superior placement of at least one fovea instead of depending on parallax to focus both foveas to provide a consistent image... The fovea is the section of the eye that is specialized for focused vision.. It covers about 3 degrees of the eyes visual field.. Most people use parallax to point both foveas at a single target but physical and health problems can cause the process to lose some degree of ability... Something as simple as fatigue and eye strain from long sessions can cause misses due to the eyes lying to you.. Having the fovea of the dominant eye will allow for visual check points to offer the benefit of always trusting the image... can you play well the other way? Absolutely... Just think about this when you start missing after a long session.. People say they lose focus and they think it's mental focus but it could be a visual thing....
The dominant eye sees several more shades of color than the non-dominant eye... Binocular vision see about the same amount because the domiant eye is towing the load... But the dominant sees them faster which matters as we use patterns to create a visual shot reference with the eyes moving back and forth from the cueball to the object ball. Why this matters is that aiming at a spot on a round object where there are sometimes little to no marks to differentiate the exact spot from the ones beside it often requires the use of the shading differences caused by lighting and shadows. Since the task is quite difficult you would always want to use the best tool for the job... A position with the dominant eye in a dominant position will ensure that you are doing all you can to see the spot quickly and maintain it's location......
As far as the elbow drop goes... There is no elbow drop problem... For beginners the pendulum is easier to teach and removes the timing issue of the elbow drop but most players evolve into having an elbow drop even if they think they do not... Allison Fisher is the only professional I can think of that eliminates the drop almost entirely......
As long as the stroke repeats and is placed and stays online you have a winner... I think the elbow drop is made out to be a bad thing because it's an easy ahaaaa!!! to pick up when you are watching someone.... Dude you dropped your elbow or dude you raised up are likely the 2 most common things you hear and see being pointed out.... It would be nice if the guys that pointed these things out took the time to see if there is an actual problem with what you are doing that causes the stroke to go offline instead of just blaming your hangnail for your limp on your broken leg.....
