I met up with FlickeNic in Amsterdam and sat describing all the types on IEMs I had been through and what the best sound for me was. He is a very lovely chap and quite knowledgable and broke down my tastes and suggested the Zeus. I trusted his judgement and even if I was wrong, C'est Le Vie. That is how the CIEM world is, isn't it?
I wanted to demo a Universal Zeus first, but unfortunately I don't get along well with Universals at all and I got really lucky with the Zeus. Until this, I was convinced that the more drivers is a gimmick (and to an extend I still do). But I am so chuffed with the Zeus that I now cannot make as strong an argument against it.
It is an eye wateringly expensive purchase. Why don't you contact Jack and see if you can get a demo of the Universal before you commit?