Don't know about Z or DMS, but I tried the Eikon suedes on the VC and found essentially what erics75 found - the eikon suedes made the VCs sound boring (muddied the lows a bit, weakened the attack, slightly worsened the detail retrieval) and somewhat diminished the otherwise impressive layering and sound stage. Would love to hear what others thought, but I was pretty disappointed with the suedes (though l am quite happy with the VC overall). The eikon suedes do make the VCs sound a lot more like the Aeolus (IMO), so maybe that's why he likes them? To each their own, I guess.
I have to say that I sometimes find Z entertaining (sometimes), but I've realized that I just don't hear things the same way that he does and have stopped expecting his opinions to match with my own. I bought an Ether C partially based on his rec and found it to be fairly boring, though technically quite good. Based on the fact that Ether C and Ether CX are plentiful and relatively less expensive on the used market, I think that others found them lacking too. I also got the Sendy Aivas which he heavily rec'd, and those were very interesting but ultimately disappointing (unbalanced tonally, admittedly nice treble but also somewhat tinny; a bunch of EQing could make them sound reasonable but I'd take many other headphones over them even with EQ). Lastly, I agree with him that the Aeolus is a great headphone, but disagree about where the Aeolus slots in with the rest of the ZMF lineup (I've been fortunate to have a lot of time with all of the ZMF dynamics outside of just a little time with the Auteur; the VO and VCs are the flagships for a reason, IMO).
As I mentioned in an earlier post, I do agree with him that the THX amps are pretty cool and I did agree with him (and with DMS) on the Elex, so I guess there's that.
As always, different boats for different folks, just my $0.02.
Felix