My M5 has the same hanger. I am sure there are several versions of hangers and pans across manufacturers/re sellers and manufacture dates and locations. Sorry I don't have any answers for you.

The vids were to show just how much can be done and ideas for others to use. I have set up a tuned scale on an adjustable platform where the scale is anchored. The purpose was I had noticed movement of the scale as I adjusted weight from calibrated zero to final weight. I was also looking for something that would help reduce parallax therefore the camera was the solution. Short throws are done with an CM 1500 and finished on a beam. Repeatability and confidence in accuracy was improved. Isn't that what it is all about?