just fyi if you use earth shield and have glyph of lhw on your resto shaman, its insanely more efficient to use lesser healing wave than healing wave. I never, ever, ever cast healing wave on my resto shaman - just chain heals, riptide, and lhw on MT. with ES up and glyphd LHW, it heals for 5-6k non crit and 8-10k crit @ 2k spell power - and with 2 ele shamans you are pretty much critting all the time.