You've got the right idea on Tanking but if you aren't rotating your combos on different mobs then that might cause a problem for AoE/Healer aggro.
Here's what I do:
-Pull with Shield Lob
-Flash 2x
- Fast -> Savage on the first mob
- Fast Blade first mob
- Savage Blade second mob
- Flash
- Fast Blade first mob
- Savage Blade third mob.
- Flash
- Repeat from first mob (Fast->Savage)

Throwing a flash in after every combo will help with enmity on the mob that is being focused while you Savage Blade the other.
Once you get Rage of Halone, do the same thing except replace Savage Blade with Rage of Halone.
On bosses, just go full combo, you don't really need flash unless you want blind for mitigation.