Poor Jim and Sterling. They have been jailed since Monday. We are trying to recondition them with the help of drugs and confinement, to use only the litter boxes when going to the bathroom. Since Sterling's inappropriate peeing (as determined by an urinalysis) is at least partly medical, I am giving him early parole. He will move to step 2 which is confining to a single room. Jim, on the other hand, needs the full 2 weeks in the cage followed buy 2 more weeks in a single room. And even then I am not certain that I will be able to trust him fully.
So now that Sterling is alone in a room, If I find any spraying in the room, I will then know that it could only be Sterling and he will need to go back into the cage. He is actually in the same room as Jim's cage, so they still have each other for company.