The difference in tollerance between the two is common knowledge IMO for anyone who follows the sport. If [I knew] it was an armbar, I obviously wouldn't have said "I'm going to sleep". The problem is, what I saw, and what pretty much everyone else saw, was a triangle choke that ended it. I could be wrong because I was focused in around Sonnen's head but if anyone has any video footage I'd love to see it again. I'm not saying you're wrong, I'm just going off what I saw and what the reports are saying.