Leaf has updated the GUI since your review and the big virtue of the 10R is the rotating sensor which is lost on people who use 645 cameras. For someone who is using a 6x6 camera such as the AFi, the leaf aptus 10/12 is the best game in town. Now if I were buying a back again for my AFi, I would still pick the Aptus 12r over the credo 80 any day purely for the rotating sensor. It's one of those features, that I wonder how I managed before. I may have written this before, but many people shooters have preferred the Leaf backs over the phase backs for the skin tones and film like file quality.
As an aside, it seems you like quality photographic gear so I'm simply baffled that you haven't checked out the Hy6/AFi and the wonderful Schneider lenses so far. Next time you are in San Francisco, I'll be happy to personally show you the platform.