I wanted thank everyone for posting your impressions. I went to my local (Huntsville, AL) Best Buy store hoping to see if the Momentum Over Ears would fit my ears, but they don't carry them in the store. They did have the On-Ear on sale for $149.99 though, so I decided to try them. My wife has 14 days to tell me if they leak too much sound. (one area the Senn HD202 has these beat).
My store had a few pairs of ivory and black left (perhaps more locked up?) with the sign stating the other colors could be ordered. YMMV but I hope this info might help someone on the fence or wanting a second pair. (I'm tempted by the $136.99 pink ones on Amazon to save for a future gift.
So far I think they are very comfortable though they don't get as loud with the same sources as the Senn HD202 they are replacing. (ripped the cord out of one side after 5 years).
I will be going to Indianapolis before the 14 day return period is over so I guess I will look for a place to audition the On Ear version.
Being new here, I apologize if this is out of place, and if there is a better place to look for deals on gear that seems to be under a MAP policy but free from counterfeiting, I would appreciate pointers by PM.
So far my impressions are that the alcantara is very soft and I can lay on my side with no discomfort.
I may try bending the band to get a bit stronger clamping force as it does seem to help if I press them to my ears slightly.
FWIW, I was also strongly considering based on reviews Sony SDR V6, SDR 7506, and Sennheiser HD 280 PRO before I was swayed by the looks of the Momentums. The browns remind me of flight jackets. Besides the Senn HD202, my next most used over-the-ear headphones are David Clark H10-20.
Thanks for the site! I will have to ration my visits unless/until I get divorced or catch my wife liking my headphones.
Mark