Black Morass

So we've been having some trouble with this instance but i've been getting some helpful tips about it.
http://forums.worldofwarcraft.com/thread.html?topicId=101803247&sid=1&pageNo=1

I took a look at both links and liked them a lot. I also did some investigating on my end as a mage and figured out that especially for this instance (and other endgame ones at this point), a frost build isn't going to net the DPS outlay needed to bring down those added mobs quickly. I just respecced to Deep Frost, but it looks like I'm going to need to shift to 10/48/3 or 33/28 in order to be of any good use in that instance. Looks like I'm returning to my roots!