Aside from taking FFF out after the first pull and going back to the mouseover version I used before, it's actually kinda nice.
While I dislike the semi-automation aspect of castsequence macros, this one actually helped. With the stupidly rabid DPS I had in that group, I was taunting practically on cooldown. A spam button made watching threat plates a bit simpler. I stand corrected.
#showtooltip /startattack /castsequence reset=combat Mangle(Bear), Lacerate, Lacerate, Lacerate /cast !Maul