Someone explained that to me once;
Sometimes you practice something the wrong way and you don't know about it, so it doesn't work the way it should, and then you stop practicing it for some time and when you try it again you do it much better.
This happens because your brain is analyzing what you're doing wrong and then it tries to fix itself so you'll do it better.
Pianists use this on purpose.
I practiced the Simple Switch for a lot of time and I never got confident with it, so I stopped practicing it for a few months and not so long ago I started practicing it again and now I'm able to do it every time, seriously.
^long but worth reading imho
Yes, agreed. This acctually is a good technique, and has happened loads of times with me, the most recent was I was practasing pughes pass, but every most the time is made the nose... I went on holiday for a week and didn't touch the cards much atall, when I got home... well, lets say my pughes pass is silent now. Same with top shot too.
It's happened so many times, but I never really though of using it to my advantage by purpose.