@mixman I got to hear this (ZMF pendant at ZMFestivus this past weekend) it was awesome sounding and if you are willing to jump the price up it is a solid buy, I was really enjoying it. I am probably going to upgrade to it as my next tube amp, as like you, as much as I like the Glenn (it was amazing listening to it! Honestly, if you ever get the opportunity to hear a Glenn jump on it), They are rather difficult to come by and the waitlist is getting prohibitively long. Hopefully Glenn starts feeling better and he can continue producing his magic in amp form =)
Anyhow, The Pendant is an easy recommendation after hearing it this past weekend. The Cayin I recommended and have currently, is feeling a little lacking after hearing the Pendant. But still a great amp =) both are great amps in their price brackets, with enough changes in quality to warrant the price differences. At least in my opinion, not that my opinion is worth much
edit: saw your post after hitting go lol, but yes the Cayin is a more holographic closer to neutral sound, at least to my ears. The thing ways a ton for its compact size though lol, something to consider. But it is one of the best looking tube amps I’ve seen, but due to its enclosed nature tube rolling is a pain in the rear. Based on what you have said are your preferences, I think the Cayin and or the Pendant would be right up your alley...neutral with just enough tube goodness implemented.