A question for other warriors out there, when do you find it most effective to use these abilities? I know there's a brief window at the end of an opener where I could (if I'm lucky) get one off after the six fell cleaves. Other than that I've been using them as filler if I hit 100 rage but have 6 seconds or less left on berserk CD. Is this a good way to do it or should I be using them more often?