I am Enhancement Shaman just coming back since playing in the first tier of content in Cata (was doing progression raiding before I left). I have read the guide above and have read the forums on elitistjerks. I understand the rotations, the stat priority and our change to being a bursting spec. Both of my BS & JC skills are at the Cata cap. My question is at what point should I retrain into EN & HB (if at all)?