The Arca Swiss Cube is the world’s finest (and most expensive) photographic tripod head. Only those truly dedicated to their art/passion/work would invest in one. So why would you need two??
Well, I wrote an article, mostly for fun, over at getdpi.com (read the article) about why you would need two.
Big thanks to Charles Brown, one of our very talented customers, and a forum member of getdpi.com for the photo of the setup below.