Resto Shaman Mastery, YAY or NAY?
So i have just come back from an almost 4 month break from World of Warcraft, Only to find that various parts of what i expected in Cataclysm have already hit, Name Mastery.
Now i understand that in order to obtain Mastery, I would need to reforge some of my gear to obtain Mastery stat, And that each point of mastery gives me a 2.5% addition to my direct healing spells up to a total of 20% on targets with lower HP.(if this is wrong please inform me)
I am utterly confused on the effectiveness and utility of the Mastery for Resto Shaman's at this point in time, But i have been told it ideally comes down to my gear level and factors such as going OOM on fights or not.
Unfortunately i just moved to a new server due to various reasons and Armory isn't showing my character but my stats look something like this:
867 MP5 (660 While Casting)
I never run out of mana during boss fights and on non Heroic Encounters, PUGs, and 5-Mans i merely spam Chain Heal which doesn't exactly put large holes into a Shamans Mana Pool.
Would it be productive for me to take up Mastery or should i just carry on life as normal?
If there is any information i have left out or that you feel is relative i have not included aswell as any questions, Please feel free to ask and i will answer them as promptly as possible.