What are you using for Atmos? Ceiling or Atmos Enabled? I don't have Martin Logans but B&W seems not interested in Atmos. I am wondering how well the MartinLogan Motion AFX Dolby Atmos enabled speakers compare.https://www.martinlogan.com/motionSeries/models/atmos-speakers.php
I loved my Sequels when I had them... I didn't know they were now making speakers other than electrostats. I bet they sound great.
I recently upgraded to the Motion series.I am using the XT35s for my fronts (mounted beneath screen) and Motion 4s for my (3) rears. I haven't had a lot of time using them as I am without a projector at the moment, but was impressed with what I did hear. I upgraded from Def Tech SM55s and PM1000s. The ribbon tweeter improves the dialogue and they had just an overall more natural sound.
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I know not everyone can do it, but it's an awesome way to experience FP. I'm never going without a dedicated theater room.