By the way, thanks for this macro. I modified it for my druid:
/castsequence reset=6 Mangle, Lacerate, Lacerate, Lacerate, Lacerate
(note that "Mangle" doesn't actually work, it has to be "Mangle{Bear} Rank 3" or something like that.)
I threw an extra Lacerate onto the end in case I was hasted. But the result is one less timer to watch. I also gave Hit a very similar version for Chain Lightning/Lightning Bolt.