I MT left side. Secondary agro is on the right side away from the dps group. No banes needed.
A few hints:
1. There is a 5% magic buff: toggle it while stunned during the breath.
2. Make sure the 8% fire invuln buff is up.
3. Bolster the line the whole fight
4. MT should not move.
5. Save juggernaut, heal pots and cunning deflection for times when you are a bit weak and your group clears out at 40-43 seconds.
6. Make sure you are gemmed out. Inviolates are hard to get but immutables are not. No excuse not to have a full set.