I wrote a review of the Fontain Signatures a while back, and they were very impressive.
But, I also reviewed the Thiel CS1.6es and they were also extremely good. There is definitely something to the time/phase coherent thing I don’t think the Egglestons can replace. Honestly, if I’m you, I’d be looking at Vandersteen, Joseph Audio, ProAc, Verity Audio, and Silverline as they, in my experience, have that elusive 3D imaging that most other brands lack. Just my thoughts FWIW.