I do have a small collection of RRS stuff, though nothing like Neuro's. I have the 192 and the double clamp set, I wouldn't want that all hanging off camera for the sake of attaching a flash bracket though. There is no doubt that RRS make some very high quality products, but their all inclusive modular approach sometimes almost seems like an exercise in how complicated or convoluted can we make this solution!
thats good to know, on the 192 nodal slide. Really, I probably "asked for it" because my request to RRS was to recommend a solution that avoided duplicate part count, i.e. the same rail for both flash and panos. doesn't sound like a very good idea in retrospect.
as an observer who has never used this thing, the elegance of the RRS solution appears to lie in the collared lens foot mount. its the simplest of all the available solutions out there, as far as I know. There are no complex moving parts, pivots , joints, inserts, extending arms, folding hardware, or the tools and set screws to support all of that. You use the lens collar itself to accomplish camera rotation, just as you would on a tripod, so nothing attached to the camera actually moves. Brilliant if you ask me, although as I say I have no experience with it. I would have loved that one on my last shoot of a corporate executive speech, where I had flourescent lighting, white ceilings and walls, and a 70-200. My Newton Bracket did very well; Its just fails at test (4) and also lacks mechanical security when in the rotated position.
Its for non-collared lenses that the RRS solution gets more complex. But in this case it just needs a MP rail to attach the bracket to the L plate. still no collapsing, or other moving parts -- the whole assembly is still attached rigidly to the camera and rotates with the camera-- you simply slide the flash mount along the rail of the bracket circle and rely on the indents for security.
Neuro I'd be most grateful for real world insights as to the accuracy of my theoretical assessment which is presently based soley on photos and vidoes