I just got a new X-12 and I must say it is an improvement over the X-11.
The X-12 has a larger opening for increased vision.
Also all the moving parts are much smoother and easier to work.
The Helmet fit me like it was custom made for my head unlike my new Arai Corsair V which is not as comfortable as my old Arai RX-7 or Quantum 2.
Gone is the old style Chin strap fastener. It now snaps like most other Helmets.
Plenty of Air and although I wear Earplugs , when I turned my head for a check to my side very little wind noise .
Keep in mind I have a quite long pony tail that is shoved up under my Helmet liner and even with that extra hair the Helmet was totally comfortable for 5 hours of riding today.
The Cheek pads aren't sticking me in the Cheeks like in my Arai Corsair V.
(http://i304.photobucket.com/albums/nn198/DoubleEagle_photo/DSCN0488-1.jpg)
Dolph :)