These fears were wrong.
After the part was gefriemelt to the camera (the appropriate manual is very precisely and comprehensibly illustrated, although the various slip-through loops of very robust belt are to thread only with considerable tact), I screwed to the bottom plate. They also makes a robust and stable impression and is using a screwdriver, tool or coin tighten very firmly. At the same time it offers a 2 metallic threaded screw for a tripod mount, so they do not separate, must be removed in such an application. That would be very impractical - I'm still on it.
For me, this robustness of the tripod socket of fundamental importance because of this is frequently the transport screw of Blackrapid-belt system are connected, and on the suspended then for example the 400-zoom with the camera (!) - Several kilos of weight, the absolutely safe must be kept. After several load tests I'm pretty sure that this will hold. When tripod use with the thick telephoto zoom I have much less concern, because here the camera is indeed on the mounting plate.
Is that part once fixed, it can not be removed as quickly; the complicated attachment to the upper Kameraöse prevented that. I see this as the most serious disadvantage, however, also do not know how to change that, because carabiner or similar divorce because of stability reasons. If time is a more intelligent solution here, there is of me the 5th star. Happily, however, this upper fastening buckle has a special fastening eye for shoulder / neck straps, and with this very thoughtful detail makes their disadvantage partly made up for it.
I have this set pretty tight-fitting leather loop, because I just so the camera had a firm grip. If you put hatched, a second belt at the level of the wrist is closed completely afloat by trustworthy plastic buckle and lashed more or less with a further handle. After that I have in any case a very pleasant feeling in the hand, it is clearly relieved at the same time, all the switches and buttons on the camera can be easily reached. By loosening the belt 2. You can put it down again quickly.
The small, foldable feet on the baseplate appeared to me as a gimmick and I have tried them very carefully. And lo and behold: The D800, which remains with handle and 24-70er had to be quite strong stored tilted forward are always actually. The legs also keep a little extra pressure, feathers a little bit, but not a kink even after prolonged standing trial. I hope they keep in their hinges for a while, the whole thing is quite handy.
Note, though: I've done this experiment without the angestzte massive lens hood and with angestztem 400 Zoom I came with the best will not get the idea that to try at all.
My conclusion: I am pleasantly surprised by this thoughtful hand strap design, in its essential parts (bottom plate, belt, buckle and leather processing) leaves a very positive impression. For stationary use with the camera they seems very well suited for transporting longer but I sit with my combination to other alternatives.
Addendum: Meanwhile proven by an insert on vacation that the loop and thoroughly for a more extensive "outdoor use" suitable. The problem is then, however, the permanently blocked right hand, a faster grip in your pocket (cigarettes, fire, loose change, car keys, etc.) will not be possible - even less, though still lacking a suitable storage area.