strange I run 3 healing stream and 1 mana spring totem and I havent run oom on a boss yet. CoS today was a little heavy on usage since its a guantlet, but as long as its not a boss you can drink. I'm thinking of speccing into resto on all my elemental shaman for the +25% healing stream... right now at 3 it means I can almost ignore my shaman on most fights and focus on dps and healing tank.