Dual Tanking?

I know rockbiter pulls a lot of threat, but I’d be curious to see this at mid-high levels, where tanks start becoming more relevant.

Do you have recommendations around a rotation, core tanking spells, gear, macros, etc.? I wrote up a low-level Classic Warrior Tanking Guide and would be interested to see something similar for Shaman, though I suspect they wouldn’t really be as viable after mid-levels.