Hello Shacco,
I have the RS 2020 on Diamana M43.
I'm very happy with it, it's straight and long shot ...
For those in the know, I hit the back net after a bounce at the Lotte Kasai driving range, and I'm stupid with a driver for sure.
I'm a little clumsy with the drivers club and was about to give up. A guy in a store offered to try the PRGR and it was like discovering Excalibur ...
I will wrote a quick feedback on if you want.