Hunters need to eat the initial Mind Control when they pull. This should give DPS enough time to kill it before the cooldown comes back up. For multiple mindslayers, the first one is killed with a hunter eating the first mind control. Then that mindslayer's tank moves to the next target and taunts when that mindslayer's tank gets controlled. This goes on until all the mindslayers are dead. The whole trick is being ready to counter their aggro wipe.