Hey, guys. My raid leader wanted me to go Demo for Lei Shen, so I got rid of my Destro spec. Things are going fine except I have no idea what to do with Durumu's ice walls. Am I just supposed to get up as close to them as possible and Hellfire? What about the far walls while we're running the maze? Harvest Life didn't seem to be doing much damage compared to what F&B used to do so I'm assuming I'm not supposed to use it, but we cut it so much closer than we used to. The walls were practically on top of us before they were broken, which is pretty unusual for farm.
I've only done it once as Demo so far and I didn't take MF, so I'll be trying that next time unless you guys suggest otherwise. I've always done top damage on the walls even over our Ele Shaman, so the difference was really noticeable.