One thing you can't see in the video because my lead Shaman is in a different group than the other two are the Healing Stream procs. With my other two Shamans being speced for Healing Stream bonus output, and carrying that extra Earthliving buff with Dual Wield, they are receiving just over 500hp/2sec (little over 250hp/2sec each totem). Not bad for essentially a fire-n-forget HoT.