Jeff, I think because you were using another cue, something unfamiliar to you and you were not really expecting anything, that you just let your natural stroke shine.
You stroked it without thinking about it, without tightening up, without worry, in other words your stroke was fluid and your wrist/grip was loose, and you drew the ever living snot out of the ball. Your subconscious took over and did what you always could do, but maybe never really trusted it enough. The trick is to now be consistent and do that all the time. Good luck.
Just my 2 cents.
You stroked it without thinking about it, without tightening up, without worry, in other words your stroke was fluid and your wrist/grip was loose, and you drew the ever living snot out of the ball. Your subconscious took over and did what you always could do, but maybe never really trusted it enough. The trick is to now be consistent and do that all the time. Good luck.
Just my 2 cents.