To build on what Retnuh said in his first post, the key to Rick's method of shooting is the absence of any mental calculation, freeing up 100% of the brain to concentrate. Usually, this sentence would be completed with the words "on the target." However, over-reliance on those words held back my shooting for a long time.
Instead, as in Retnuh's example of the quarterback, or, I believe, a pro golfer, Rick Welch, or any great athlete, I think they have developed their powers of concentration to the degree that they are aware, not just of the target, but of all aspects of their shots that need their attention. Using the brain to calculate distance, measure a gap, or do any of the analytical or conceptual (left brain) thinking that humans are so fond of just takes some of our mental capacity away from our ability to concentrate and be aware of all the tiny movements that affect the shot. It clearly isn't possible to have conscious control over these movements, but if we are aware of them, in the same way we are aware of the target, our bodies (or right brains) will make the necessary corrections without the necessity of conscious direction.
My mistake was in trying to concentrate on the target to the degree that I tuned-out my awareness of what my body was trying to tell me. Now that I have expanded my awareness to include all aspects of the shot, my shooting has improved.
There are some very fine gap shooters, many who are far better shooters than I am, who involve their conscious minds in the shot to a far greater degree than I'm describing. My comments are directed to those who want to improve their instinctive skills, and I believe are consistent with Rick's method.
Oh, and Merry Christmas everyone!