I remade the wall mount entirely to accommodate some of my requirements.

1. I wanted the arms to be longer so the controller could sit straight or at a small angle backwards
2. Made it more aesthetically pleasing by adding "Speed holes" and the razer wolverine font.
   (this saves material as well! Win Win!)
3. No need for an extra block to mount it to the wall

You can either use self adhesive tape or 2 screws (2 small holes are present)