Could you not just add a /cast Slam! at the end of that macro?
I'm fairly geared at this point and due to lack of weapon drops I'm forced into SMF (stupid foe reaper)
I find myself constantly rage starved and that's with waiting for over 60 rage for HS and I'm finding it's hard to keep up a consistent dps level even thou, I'm using the rotations suggested (like the OP) I think I cap out at 12k and I feel i can do better, just not sure how.
Does SMF have more issues with being rage starved then TG?
I get so frustrated some days I almost want to play my hunter instead who is able to consistently put out 15k+ on raid fights