They do have some swiveling action. They can sit flat on a surface with the headband sticking up, kinda like the HP100:
But I can't see how to make them turn to lie flat like the M50:
At least I assumed that's what Stillhart meant.
Yes it was. Can you please post a pic of the case open with the headphones sitting inside? I'm curious if it's less snug with the bigger case...