The last two fights with him in normal mode the stun droids were not spawning at their normal intervals. In fact we got him to about 30% before seeing the first stun droid. And instead of one stun droid per spot they spawned stacked in 3s which means a pretty hectic time being stun locked trying to take down 6 stun droids. Last week they spawned 2 at each spot. Now, this is my first times through it on Republic side, but on imp side they always just spawned one to a spot, not 2-3 stacked on each other.
did it on imp last night, no issues at all. (nightmare)