frozentundra,
It looks like you are using Thiel SCS4Ts with a subwoofer. Have you tried the more full range Thiel speakers without a subwoofer?
I came back to my Thiels after having Revel Ultima Salon2s in my system for a short while. To my ears and in my setup, they didn't come close to my 20 year old Thiel CS3.6s. The most obvious shortcomings were with timbre, bass impact and soundstage. Possibly it was bad synergy with my Audio Research Ref tube gear, but my wife totally and independantly agreed with me (she has no musical background and I don't consider her an audiophile, but she trusts her senses).
One day, I would really like to audition the Pass Labs classs A amps in place of my ARC Ref 150, but I don't have any dealers near me. Keep us updated on your adventures.
Jon