Nor are their numbers high enough to wage war against all of those Seekers AND taking care of the Voidwoken. I think they ought to have a separate quarters on a separate floor, like Stabbey proposes in his thread Prison Economy.
I also like the idea someone had that you add in some sort of a shock collar mechanism into the source collars. So any one Magister can just stop a collared prisoner on their tracks if they do anything. Or maybe just give this power to the higher-ups?