OP,
Sounds like you are making progress. I have heard a lot of Magico and Wilson systems. I have always been very impressed… but also, I do not want that. At the highest level you get incredible detail… and natural sound,.. to a point… but you can get loose too much natural organic comfortable sound. I have carefully climbed to higher levels of components and speakers to have a wonderfully forgiving and natural sounding system that exactly appeals to my sensibilities.
It really sounds like you know what you like, have a very discerning ear, and are able to hear the speakers that fulfill that niche. I guess the only question is about the electronics driving the speakers you have heard. Do you know them well enough to be able to take them out of the equation (and the venue) when you hear the speakers. My guess from your descriptions is probably yes… but assume you swap Rowland amp (and preamp) with an Audio Research tube amp and the character of all the speakers will change considerably. You are comfortable knowing how this would change the character? To be honest… I have forgotten the electrons you own.
Just saying that over the last fifteen years my goals in sounds changed. Speakers were the first change I made, followed by swapping most of my other components to raise my system several levels.
I’m just talking to see if something strikes you as relevant. You have a very good concept of what you want… which can be the hardest part.