I thought this was really cool
[VIDEO]http://www.youtube.com/watch?v=307QNIQAcqY]Frank Gambale - Gambale Tuning Explained - YouTube[/VIDEO]
It's very cool. I've meant to give it a try at some point, but never got around to it. I think what's stopped me is, for someone like him who's sort of taken their playing about as far as anyone can, I imagine it's really cool to seek out new shit like that, but I can't help but think 'I can't even use standard tuning that well, what the hell am I gonna achieve with this?', and then been lazy and never done it.