With a 10/0/51 build, I think I was sitting at about 600 frost damage or so. Now with mm unbuffed I think I am right around 770ish. With all the raid buffs, pots, flasks, etc, i was just breaking 1000 last night. I would say that 1000 is better then 600. I plan on switching back to full frost when I get a couple more epic drops from kara and gruuls.