Best spell rotation on boss frost tank threat?

[Mofoe]

What is the best single target rotation as the main tank for a spec like http://www.wowhead.com/?talent=jcEZGxxzhed0hRVosx0g?

[neonanaski]

..the same rotation you'd have as DPS.

Alot of people forget about Blood Tap, so I'll give you a freebee rotation to start.

IT > OB > BS > BS > Blood Tap > OB

FS gains priority when you get KM procs. Otherwise just mash OB as much as possible with IT up.