Finish leveling JC. That's a bit more SP you can toss on your gear. Honestly, when my raiders are having trouble...I send them back to the dummies. No, dummy spanking isn't going to be the best you can do dps-wise, however, it DOES re-cement your rotation and priority system into your fingers. Sometimes I'll join them, to watch what they are doing. Casters should ALWAYS be casting. Start spamming that next spell while your LB is casting. I freely admit I know zip about elemental shamans...so I can't help you spec specific, just in general. Hope I helped a little.