but one thing I did notice was how the guitar intro kept moving slowly across the soundstage and back a couple of times. I'm sure it was there before, but it was very noticeable this time.
That sounds like my last room - the image was good, but it moved around. I figured out it was the reflections as the voice/instrument changed Hz and triggered different room modes. Try towing the speakers in more and moving closer to your seating position, if you can. Aiming the tweeter more at me, helped clarify the image in my new room.
