I've owned both the C1 & the Linhof 3-way head...actually I was the 1st owner of a Cube in North America, ordering it at the end of 2004 and having to wait about 4 months for Arca-Swiss to deliver...this pic's from Passover '05
http://onfinite.com/libraries/462144/5d7.jpg
I'd originally sold the Linhof head to finance the C1, but ended up selling the Cube on ebay ~2 yrs ago...likely the only time you've ever seen on there if you watch that sort of thing. I found an old, used Linhof 3-way head for cheap and am happy with it.
Don't kid yourself, though; it isn't quite the same as the Cube, though it is very good. With extremely wide angle lenses the Cube's fine gearing can nail a shot down where my placement ability with the ungeared Linhof head is a limiting factor (but not the Linhof's locking accuracy, which is amazingly accurate), and when shooting up close the Cube's far better than any other head you'll try because the lines of its 2 geared axes lies within the body of the camera. On the Linhof (and all other heads except the Korean copy, which is likely quite good), the camera's moving along upon the outside of 2 spheres of rotation, causing much more movement of the image and focus when very close.
Financially I couldn't justify so much money in my camera closet invested in a tripod head, but I don't regret buying the Cube for a second. It is a dream to operate & I do wish I had the $ for it. For the Alaskan fellow considering the Linhof 3-way head, I do believe it is the next best thing.