Best MM?

What was the cost of the IQ3 and where did you get it ? New, I assume, correct ?

+1 on the Zephyr. You get to use/check out different gain and other settings on your phono-pre than your MC. And it is a nice sounding MM “type”, but a moving iron. I used to have a Virtuoso Wood but IMHO the Zephyr is a better tracking and sounding cart. 

Nagaoka MP500
Ortofon Black
Pickering XSV3000 or XSV4000
Stanton 881S
Shure V15 IV or higher
Grado Sonata II or higher

 I used to have a Virtuoso Wood but IMHO the Zephyr is a better tracking and sounding cart.

Good to know. What's your phono preamp if I may ask?

Just put a new Virtuoso ebony in my system on Thursday. It's not broke in yet but is showing great potential. Other MM's I've tried that are very good:
empire 4000 diii with bliss stylus
Grado signature with XTC stylus 

That said, chakster & lewm have a lot more experience than I with MM's...