Furthur comment: In respect to the plate issue, it is the Arca-Swiss style. It would be no less sturdy to continue the standard size, than for other manufacturers to make their plates wider. By the way several other manufacturers, make their QR's not able to lock down on our plates, yet accepting of their wider plates only.The monoballfix plates, the smaller series, are designed to allow use of very sturdy plates in a much more compact size than has been available in the past. We can even accomodate cameras such as Sony Nex, and similar cameras without the bulk of the classic Arca-Swiss style plates.
In your review I would question a couple of comments: First the Arca-Swiss B1, predecessor to the Z1, was out for many years before the Kangrinpoche.That may be where the similarity may have come from for the Chinese copy.Secondly it is quite difficult to precisely do rotational stitching with a base pan on a head. This is, of course, due to height difference from base to nodal center of lens. As base pan has much more to do with position of vertical notch vis-a-vis the tripod legs, than accurate panning/stitiching, the need for numeric scales is much less or non existent. The head being available with top pan as well, could perhaps benefit, though people trying to pan with a zoom would still have to check and work out increment when zoomed to the focal length they wish to use. So this increment could be 3 marks or 6 marks or, as seems to be suggested, 10 degrees or 15 degrees, etc. Either way will work so this seems less of an issue than many make it out to be.