OK, after cranking Signals with a bump in the subs and having my mind blown, I went back to Moving Pictures with the same idea and was similarly happy with the results (MP didn't need quite the sub boost that Signals did but I left it where it was anyways for kicks).
Once again I'll say, I'm not sure what else I could possibly want or expect from this, I think it's killer. And again, the second side/half seems to take more liberties with things popping up in the rears and heights (some of which actually startled me and made me jump, like a particular synth hit in Witch Hunt), but that's cool... and YYZ is fairly dynamic in that way as well.
My only little nitpicks were really little and I'm not sure what else could even be done about some of it...
1. When you have it cranked (and why wouldn't you?) the fade out on Tom Sawyer is a touch abrupt at the very end. Feels like that coulda been avoided. Minor.
2. Never noticed it before but man, there's a crash cymbal Peart is using heavily in Red Barchetta that is really grating! He's got a plethora of 'em of course, and they all sound good except this one that kinda has a glass-breaking quality to it that I don't love (pretty isolated at 5:21 on the Blu Ray, 5:54, and he batters the crap out of it between 8:00-9:00 and again at the end). Never noticed it before but with the ability to get inside things like this it was pretty prominent and distracting in places for me, anyway. Heard that same cymbal used at least once at the end of Limelight too. Not sure if there would have even been a way to isolate that cymbal and remove some of that harshness without others suffering, so it's probably just on the tape and is what it is.
Overall, despite being a little polarizing due to previous (much older?) mixes, in my book, Ricky C. can do as much Rush in Atmos as he can get his mitts on—forward from here or filling in the back catalog as we wait for the other 40 year anniversaries to transpire! A nice crisp box of just Blu Rays with Atmos and no vinyl or luggage tags would be aces, thank you very much.