I could also notice swapping the panels (ribbon tweeter inside vs outside) changed the "shape" of the presentation.
In the Maggie community, this is debated almost as much as Analog vs. Digital or Tube vs. Solid State.
I have setup well over 100 pairs of Maggies in all kinds of environments. I can count on one hand the number of times tweeters out worked better than tweeters in. These were in really large rooms with lots of room to the sides and rear of the speakers, but I know some owners really like the tweeters out. Not me, but that's just me...