Its not gospel but getting my noggin bounced around had me surfing info. This isn't the bible but it does make sense. http://www.motorcyclistonline.com/gearbox/motorcycle_helmet_review/index.html
Simon, Dean and Ryan have both extensively tested their CKX helmets. Neither of them seem any more strange than before the crash. Must mean something.
They're very comfortable, good visiblity, fairly light. Fogging is an issue, but a foggy mask corrects 95% of that. Talk to Dean about his Edmonton crash, Bernie is using that as a CKX display helmet.
I'll have to get pics of it. I run a fog shield in all my helmets anyways, I haven't found a helmet that won't fog up.