>>11115519Monoshaft was the name given to Yamaguchi's forst style of articulated figures. Garage kits were first actually, he went from fixed pose kits to the monoshaft system, a simple way to add articulation without fragile hinges or ball joints to the garage kits. Some Revoltechs still had this style of articulation because many were originally sculpted as monoshaft figures. Famous example is Dante, like his arms. Basically all they are is a series of swivels on a single peg (shaft). But the angles the sculpt is cut and rotate resulted in dynamic action poses. Poses that are more intentionally designed to be in by Yamaguchi. It's more like a 3D puzzle with a set of "answer" poses. It takes unimaginable creativity to pull this off for so many different figures over the years.
The selling point Revolver Joints had initially was that they added a central ratchet hinge to the peg swivels, dramatically increasing the outcome compared to just swivels.
Good Smile Company and Max Factory are companies that makes figma and Nendoroids, that's all you really need to know. A good way to get an idea of brands and companies is to browse websites like AmiAmi, Hobby Link Japan, and Hobby Search. I know you don't care much for the Japanese toys but 99% of figures are licensed stuff these days anyways. And it's a good way to see brand and company names.