5 points to empower magic missle 1, decreasing cool time

[hanism]

Hey all, I'm been messing with my mage these days and I've seen in the game quite a feel mages have almost instant cast of magic missile one. I think its done by putting 5 points into decreasing its cool time, thus reducing the cool time to 1.3 secs. I currently have a 17 mage and I found that magic missile one is probably my most used skill now. I usually cast one of the longer cool down skills and just spam magic missile one, it almost becomes instant cast with that cool down. So i was wondering if any other mages here find it useful?

thanks