What i know for sure is that Stereohedron is superb
Hear Hear! I have one (Stanton D881S). I came by it while helping a friend. He wanted me to service his Thorens 124, so I did. It had the Stanton. He said it was crap and throw it out; I’d never heard of it (this was many many years ago) but was curious: every unknown cartridge deserves a chance. The stylus was encrusted with black hard crud, I wasn’t even sure there was a stone under it. No solvent, no brush or machine made a dent in that crust. I had to use a scalpel blade — with extreme care — and finally carved it all away. The stone was there, bright and gleaming. Under a 60X scope, it looked good too: sharp tip, clean lines, like new (though I know more X is needed to really see wear). After all that work, I hoped it was at least decent, and with some trepidation I played a record...