Then when I tried to unscrew it, I found it was extremely tight. I tried harder and only managed to spin the knob whilst the screw remained in the tripod socket.
Great. Well, I needed my camera free of the Cam Caddie, so I used a hacksaw to cut it off. But I still couldn't get the screw out.
Damnit. So I went to the local hardware store and bought a a beefy locking vise grip. It was extremely hard to turn, it was seized in there good. I tried harder and the screw broke off in the tripod socket. Fuck.
I called Nippon Photo Clinic and they quoted me around $100 to replace the bottom plate. Goddammit.
Lesson: DO NOT BUY OR USE A CAM CADDIE SCORPION. It looks like, feels like, and acts like a cheap piece of shit.