I wonder if it could be possible to add more actual slaves to the wasteland.
Even when accounting for the Pitt as a major customer for DC slaves, it still feels like in DC slavery is a service without a customer.
Maybe it could be possible to add some collar wearing slaves to the locations where such could be warranted?
Add slaves to Ten Pennies penthouse, for example, a slave or two to the republic of Dave, maybe put a collar on Fantasia in Dukov's place (or ad a third one), etc.
This would answer an important question about the DC wasteland and add to it feeling like a real (although horrendous) place.