Yeah, actually I didn't heal once the entire fight. My tank finished at a little over 90% and the healing totems topped everyone off. I'm using a castsequence macro similar to the one Fursphere posted a while back on the Shamans. Lead off with Flame Shock and then spam the hell out of the DPS macro.

The Macro:
#showtooltip Lightning Bolt
/use 13
/use 14
/cast Blood Fury
/cast Elemental Mastery
/castrandom Lightning Bolt, Lava Burst, Lava Burst, Chain Lightning, Flame Shock