Fidelity Research cartridges

As about suspension - EM has hollow white neoprene balls as part of suspension. Not balls to be exact it’s more looks like short white mushrooms.

In my 9 CV it’s less complicated - no "mushrooms" present.  

Suspensions are different.

nandric, my CV was rebuilt by my friend ~ 1 year ago, if Expert stylus will fail ask him:  service et cartridgeretip dot com

Was it problematic to find fully working original sample?
I use only original cartridges, all my FR and Ikeda are like new, fully original. I wouldn't do any rebuild of any special cartridges handcrafted by masters like Ikeda. I would rather find another original sample in mint condition if something wrong with those carts, but luckily mine are good. 

If there anyone else who will rate Miyabi cartridges over FR-7f and Fz ? 

If you speak about Ikeda cantileverless yes it's difficult to get it as new. Mine CV had some distortion in left channel. Not much but after a while it was evident that I have to look for service. In Ikeda canleverless is you start to get distortion ussually it doesn't mean that diamond is worn it means that magnet gap is filled with debris and coils can't move freely. You have to keep your very records clean if you want to use it for a long time without worries. Cleaning isn't the service which changes sound or Ikeda ideas. Also Ikeda used quite tricky method to align coils and to void vobble of stylus but it can be adjusted quite fast if it is known what to do.
Em price in Yahoo japan was circa 200 eur so I was too curious not to try. This time it won't be easy as master will have to do new coil but for such peanuts it's worth to try. Diamond is good. 

@bukanova interesting, i know Nandric blame me, but my Ikeda 9 III still on the shelf along with FR64s + b60. I like the convenience of conventional cartridges like the FR7fz and Miyabi. It seems like cantileverless Ikeda is not so convenient?