More specifically at the 1-2% mark, then i have a suggestion for your dps.
Dunno if people forgot about it but, the Silithus quest where you run the geyser stuff to the machine at your factions camp still works on lvl 70's. So if you think your going to have a good first attempt at brut, you might want to have your deeps go down there and do the quest.
Scouring the Desert - Quests - World of Warcraft
Traces of Silithyst - Spells - World of Warcraft
repost? sorry if it is. didnt see any similar thread. (as far as being used on brutallus)