My main is a 70 lock that luckily I kept the components for the summoning. I have been levelling 4 other locks up as well. Once they hit 60, I got all of the components together and made off to Dire Maul to do this. All 5 are specced demo with felguards. I keep my main felguard on taunt, the rest of the felguards, taunt is turned off. I cleared the entire place with these guys without one death whatsoever.

For the final part, I put all the felguards on aggro so they could take out the imps and the felguards as they came. I didnt even bother to try and enslave one. All in all, it was a cakewalk. The pets stayed up. When things got chaotic, I would seed here and there with the 70 lock and that would clear the place up. It was super easy and now all 5 have their dreadsteeds. =)