This is
huge to me, and it is just one of the numerous little morsels I've noticed you dropping that others may be totally missing in their quest for geometric perfection.
Lately I've been going down to the table and practicing for about a hour every day... WITHOUT my glasses. I am quite nearsighted and have had a major eye injury that makes glare from the lights almost intolerable at times, so you might figure this is a great handicap. Fact is, I have noticed very little difference in my pocketing percentages as compared to shooting with the glasses on. Only on certain shots (for example, where I can't tell from a distance if the OB is frozen to the rail or not) do I have any real trouble.
In fact, I feel more free without the glasses, just going with the feel of the shot rather than trying to find some minuscule point on a ball 6 feet away and trying to make contact with it. Trust it will go in and it will most of the time. When it doesn't, I usually know the instant I strike the white ball. It just doesn't feel right, probably because I didn't wait for "it" to happen, and the ball almost never goes in when I feel that feeling.
I'm sure you've read "Zen in the Art of Archery". This concept is drummed home throughout the book, and is where I first got the idea of using the great unconscious to make... no, ALLOW the shot to happen. Great read if you haven't already.