I will definately go for Semper.@EWASS I thought the same, i own R1 zenith and i'm waiting RAH.
So I bought Shuoer Tape to understand low voltage electrostatic driver "taste" and compare it with RAH
I think bob needs to ditch piezo tweeter.
Just looking at Atlas DD highs, they are ever so slightly more lush and more realistic. If higher end gets a different drive dedicated not sure planar or electrostat as i never heard stats. I think ultimate totl iem can be achieved.
But then again Rah are nowhere near burnt in. And all those nozzle configs is like buying parfume where you get lost between smells if you spend too much time testing it. So time will tell.
No doubt however, that Rah is contender with other flagships of big boys.