I have used the supplied cardboard one with my Rega P7 which is not very useful, then the Rega Baerwald Arc printed protractor which I felt was better than the first. Then I got the Avid HiFi Rega specific one. That is the one that made the biggest difference. Not only did it sound "right" but knowing I had a tool that allowed me to be both accurate and precise in setting up my cartridge was worth the $40.
I use a Benz Micro Glider on a RB700.
I use a Benz Micro Glider on a RB700.