I have the older Universe X cartridge. I am more than happy with it connected to my ADA MG-1 air bearing tonearm and heavy plinth Lenco L-75. I am sure the ZYX Ultimate is even better but it is hard to justify upgrading any further to play my value village finds. Just kidding, I play those on a separate system if they are not in great shape.
Yes I like 4d, universe, universe II, and the premium. But wanted to know where the ultimate series can be, and if a lower ultimate model like the 4d ultimate can beat the older universe II