Not sure if this should be in Instruments or GMD. I found this guy on youtube while I was looking for ACG basses.
He's got his bass tuned ADAE, and has a Hipshot Extender for each tuner, and bounces around between tunings as part of his riff.
He's got embedding disabled, so here's a link. Awesome stuff
If I had to guess, he's a big Manring fan:
[VIDEO]http://www.youtube.com/watch?v=aY4Ra2KOyas]Michael Manring "The Enormous Room" - YouTube[/VIDEO]