Well, that thread I pointed you to is about the RMR coupler. Only 2 manufacturers so far have used that design: Arnold/Hornby and BLI. I think each company "rolls their own" instead of getting them from some 3rd party supplier. Also, while the design of the head looks similar, Arnold uses a split shank and slinky spring like MTL couplers, while I believe BLI uses plastic whiskers (I'm just speculating because I don't own any of the BLI models with those couplers).
The problem with RMR is that neither company makes those couplers available as anything but replacement parts for their models. No individual or bulk packs are available.
Well, the other thread, “BLI considered….” etc (past tense) is kind of about the RMR if one bothers opening it. Perhaps tweaking the title would help, now that it’s a reality, although limited to a handful of models (engines). I’d be interested in discussing people’s experience with the RMR, with the intention of giving it some visibility and generating more interest or even excitement. Only then can we hope the get BLI’s attention so they’d consider it for broader use. Or maybe it’s just wishful thinking on my part.
Otto