I just had a 660 eat my lunch last weekend. The top heavy sumbeatch has always been squirrly, and the moment I got too comfortable with it, it threw me like a 230lb tumbleweed. I thought I did a pretty sweet dismount and tuck-n-roll, but when I got to all fours, that heavy "enter cuss word" proceeded to drive over my head and ribs. Could have been alot worse, but the concussion and road rash makes me want to buy a Honda.