who knows ZYX retipping or refurbish ?

Thanks for your answer.

The ''old economist'' wrote about production and distribution of            wealth among (social) classes. This distribution in our case is
between manufacturer,  importers and dealers. If I am well     informed each get about 30% .So if chakster is right that ZYX
get  60% of the  retail value by exchange of the old for the new     cart  why should they   then mess with refurbishing ? 

Yes, 60% or even more, but only if you send them back broken cartridge with valid serial number. I actually sent my broken Premium 4D, but then i gave up on ZYX. I believe each distributor can do more or less to help their customers. I'm pretty sure it's very difficult to sell such expensive cartridges.  

You could do much worse than having Peter Lederman at Soundsmith repair your cartridge. His work is first rate.

I’ve had customers have work done on a ZYX Universe (a re-tip), several Benz LPs, and a Dynavector XV1-s and in all cases, the work was equal to that of the original.

Will the cartridge be identical to its original state? Well if it doesn’t end up as an identical twin to the original, the worst-case is that it will be a fraternal one.

... Thom @ Galibier Design

So after months of talking, you've got 2 options with your old zyx :
- exchange with a new one ( new version)
- or repair if you want to get the same cartridge if it's no more available

Both are the same price, around 65% of the the new value