ofcourse. whenever you start raiding seriously you have to think about those things especially in progression. i remember days of t8 (playing enhancement) content Vezax HM for example our holy paladin would use Divine Sarcrifice but me as enhancement shaman i would further help and wait around 30% of animus health to pop shamanistic rage. nowdays with 2pc t10 its sham. rage is actually dps cd + da