After looking at my stats and gear and realising that I wasn't doing as much damage as I should have been, I decided to see if Annihilation was actually any better thn Carnage, my current spec. To test this, I went to the training dummies, and fought for 60 seconds (no stuns, buffs, fury-moves or relics were used.) I ended up with a total damage of 66653 and a DPS of around 950. I then respecced, went back and tried again with Annihilation, trying to stick to the rotations suggested. I ended up with a total damage of 58760, and a DPS of around 760. Aside from the 6k healing I got during this time, there is nothing to suggest that Annihilation is any better for single-target bosses. I was particularly interested in seeing how the damage would continue while I wasn't there (ie leaving DoTs on Stormcaller while killing the adds under the shield in Explosive conflict) Can anyone suggest how this is better than Carnage?

This is a very interesting idea. I was saying last night that I was annoyed that Marauders have no knockbacks or anything similar, leaving us very useless in PvP. Having such free will over a target would also be very fun!