In heroic25 Lord J, I top dps meters as a kitty, minus the mage who actually knows how to spell steal. Granted i don't do any dps to infernals or mistresses just like melee are supposed to. All you do is run your normal rotation on lord, and pool energy about 3-5 seconds before the portals and volcanoes. Follow that by running to the portals, mangle-rake-shred to 4 or 5 cp then fero bite. Obviously make sure you have a savage roar up for the occasion. With this strat i do as much damage to portals/volcanoes as anyone in the raid along with topping meters for the fight. (again, minus the mage)