I put my tem up onto the platform where the orb is (the controller stands below the platform on the main floor and clicks the orb from there to avoid cleaves) as adds run there first when they spawn. My prot pally gets all teh aggro due to devine plea ticking and healing from shaman totems (yea, you dont need to use your tank to control the orb).

I find it easier to disable key broadcasting to the char controlling the orb as using any abilities will cancel the mind control and with the debuff you get from using the orb this is disasterous.

Then i simply use consecration and magma totems to kill adds (not casters) with fire res aura up, and alt tab (not really, i dont run wow full screen so i click the controller's tab on the task bar to switch) to the controller's screen to destroy an egg every 8 seconds or so.

Just take it slow and steady, if razorgore starts losing hp while you are controlling him, you can move him to near your group and heal him.

I kill the eggs furthest away from me first (where razorgore starts) then after the first MC drops i kill the eggs closest to me, then all the eggs in the middle last.

These days though I just bring a friend along to control him while i kill everythig for 8 mins as it is a lot easier and no point stressing over the encounter by myself lol.