Cartridge Man MM3 vs. ZYX R100 Fuji FS?

Audiofeil, did you forget to disclose that you are the US importer for Cartridge Man products, including the Music Maker?

I've noticed you challenge other dealers "bigging up" their own brands!

I did not forget.

I offered no opinion, comparison, or endorsement of the product.

Thanks for your interest.

I use a MM2 (sans Isolator) with a Roksan Nima unipivot tonearm.
My listening is almost exclusively jazz/improvised music.
All I can say is that I think I know music when I hear it and this combo enthralls, delights and makes it difficult for me to stop listening. If you want to spend more on a cartridge (not to mention extra amplification for a MC device), be my guest, but I have absolutely no desire to (well, OK, I'm curious as to how the MM3 sounds!).
To me, good hi-fi is all about the suspension of disbelief, not the unending quest for ultimate fidelity (whatever that is). Once you find a system that really does it for you, stop there and simply ENJOY THE MUSIC.