It's funny, last week I was doing Flex wing 4 Siegecrafter and I was soloing the belt, but I accidentally used CS on the boss right before jumping on the belt, and it took me fooooorever to kill the add on the belt. When I got to the belt with CS though it melted ridiculously fast.
I like the concept of CS though, it makes our rotation not really a rotation but a more dynamic priority system. I mean every class shouldn't feel the same.