The '9.Solutions Savior clamp with Stud' is turning out to be an excellent photo clamp. The grip of the jaws is the most secure of all the photo clamps available, surpassing that of Superclamps and Cardellini style clamps, IMO. The 5 receiving threads are useful but the 5/8th in pin is the strongest and most torque resistant attachment point, exceeding that of a 'Hex' pin in an 'Hex' socket. If the pin is gripped in the circular jaws of a MSE or Kupo 'Gag' or 'Griphead' the link is solid. It's early days in my use of this clamp, but, to date, the indications are that it may become my preferred photo clamp outright.