I have posted stuff associated with this before - about, say, things artists know about their tools (e.g., a drum, a paint brush, a chisel, etc.) that other folks may not appreciate.
I was watching Yankees/Red Sox last night and ARod fielded a grounder lasered right at him - jumps to his right, crouched low and stabs it on his knees, other hand out to provide support as he gloves the ball. As he coils back up to fire the ball to first with a cannon of a throw (you don’t have to like ARod to respect that he has one of the best arms in the game) he subtly wipes his throwing hand on the back of his pants in a fluid motion, gets the ball out of his glove and fires. Boom. Out.
But that subtle wipe of his hand so he can improve his grip? Man, after working with a bunch of Little Leaguers, that is an incredibly tough thing - something you can do well only after thousands and thousands of repetitions - and only after you have been burned hundreds of times by NOT wiping your hand first. It just stood out to me as something I could only appreciate on the outside, not having remotely played ball at that level.
Got me thinking - as a guitarist, I automatically do things like adjust my tone and volume controls on the fly - stuff noob’s have to stop to do. Or knowing to step on a stomp-box effect - say a fuzz box or chorus pedal - and do so smoothly within the context of a performance - especially if I am changing pickups, too and getting ready to step back into singing a verse or something.
The devil is in the details - what are some examples you have seen or you know where if you hadn’t done it a thousand times, it would get in the way of the execution of that sport activity or art?