Kaz is a DPS race - so having max threat gear + having misdirects is a good thing. Misdirects are good for hunters anyway - it lowers their threat and raises yours. Kaz isn't that hard of a hitter either, so you can skimp a bit on armor and be okay, still.
I'd strongly recommend getting some expertise on your gear (
[Shard of Contempt] is great here), possibly a dps staff like
[Staff of the Forest Lord] and go nuts. Also you can probably maul earlier than what you're doing unless you're really low on rage. I usually start with an enrage, FF before he reaches me, maul+mangle and then go into the cycle.