Today i decided to have a little fun...and oh boy i did ^^. Pushing my rage tank to its limits , i guess i'll do this more often .
When I switched my troll to rage I did something similar, I also tanked LD but without tank gear, so i had around 800 dom and was unable to pull any of the adds, it was really fun, but we were only able to make it thanks to our trollers, that took care of the technitians.
That's really fun, and a great demo for people who think that meeting the dominance recommendation impacts holding aggro on enemies. I did A&B in mostly DPS gear, total of 600 Dom. Wasn't even a challenge until Hank and Sinestro were both beating on me.