Hmmm... just wondering. I tried 231.5 mm P2S distance for FR64s and found that I could barely set overhang correctly
using Clearaudio protractor. Pushing the cartridge all the way out on the headshell (Kiseki Blue with Orsonic headshell, Air Tight with Ikeda headshell). If I use Feickert protractor,it fell just a touch short of Baerwald, nowhere near getting Lofgren nullpoint and Stevenson is the only on that I still have quite a bit room to spare.
I wonder if anyone else has the same problem or may be I am doing something wrong here. A friend has a Dennesen protractor that I want to try but have not had time to get it from him yet.
On FR66s, I only use Clearaudio protractor so far which is also barely fit but sounds the best I ever heard from Koetsu so I have not been fiddling around much with it yet.