Regius Elements - EARTH
Check out the PDF explaining the electronics...
There're some really cool ideas built into these. I quite like the idea of having a master volume control that controls both PUs, and then a secondary volume that only affects the neck. I was thinking it would be quite cool to take the idea further and have a two volume + one tone arrangement, then add a blower switch to it.
That's a very beautiful and well thought out guitar, and truly one of the best manuals i've ever read... it really explained the whole design process extremely well.