I'm trying to use a tank for the first time running these heroics and I can't seem to make it work with 4 elementals. How do you heal? Do you have one guy dedicated to healing at all times, or do you just stop dps and top the tank off with all 4? I'm currently pondering speccing one to resto. My friend tanking only has about 19k hp though, maybe thats why?

Thanks for the info though.