First and foremost, KSHunter, did you sell the arm yet?

Second, I have used both the Hunters Cradlecam Pro arm, and the SuperArm. They are BOTH quality units.

I am NOT a patent expert, but I understand that a new product needs to be 20% different to be marketable. There is more than 20% difference in several areas of these two fine arms.

Also, while they may both utilize a sandwich type pivot joint between arm sections, the joints, and the material used in those joints, as well as the physical size of those joints are way different.

If that arm is still available, I missed what you wanted for it? I know someone who is looking for one......