"the sound can literally snap into focus."
Funny you should mention this.
Yesterday I pulled everything apart to put subwoofer and rear speaker cables under my carpet and when I moved my speakers back in place, I put them 6" closer to the front wall and a little closer together.
I put on "Friday Night in San Francisco" with Al Di Meola, Paco de Lucia and John McLaughlin and was shocked by the change in sound quality. Imaging was suddenly sharp and focused, while the soundstage was wider and the tonal balance was better. The only thing that was off was that everything was "lower" than it should be, which I assume means increasing the rake angle of the speakers.
The question now is whether I just sit back and enjoy things or do I try to tweak things and get that extra 2% more.
Can dumb luck actually work in one's favour?