ZYX Compilance

ZYX compliance measured at 100Hz just like nearly all Japanese cartridges. 

You have to multiply on 1.7 to convert this figure to 10Hz 

Using the above to calculate compliance to get a resonance frequency of 11 I need the total cart + arm mass to be 8.2g since the cartridge itself weighs 8.6g this is impossible.
Next question, what tonearms are being used with Zyx carts with the silver base?

You need Hi Fi Test LP to measure actual resonance freq. of your arm/cart. The range is 8 - 15 Hz, why do you think you need 11 Hz?? Change headshell if you want to tune the resonance freq. 

I've been using my ex Zyx cartridges on EPA-100 and Reed 3P "12. With EPA-100 you can use different headshells, with Reed you  an choose the mass and length of the arm when you're buying the arm ("9, "10.5, "12 inch available from the manufacturer). Special mounting screw for a cart can change the mass a bit. 

I had a view different ZYX cartridges and what I can say is that
that the full effective mass (cartridge plus mounting material plus
headshell plus effective tonearm mass) should exceed 25 grams
(28 grams are even better).

I'm currently using the ZYX Universe II Silver base (8.2 gm) w/ the Kuzma 4P (effective mass - 13 gm). Also had it with Cornet 2 tonearm (effective mass = 12.5 gm).  Worked well with both tonearms.