It’s common enough. We use multiple batch subsystems because we have 4 divisions sharing 1 machine. Each division had it own batch subsystem to keep things clean. As RealRaven mentioned a lot depends on the size of your machine, and it’s intended use… If you are only running a few jobs at a time it may not make sense. If you have 4 divisions running 6 jobs at a time, that is a different story. Provide more details on your current set-up and we might be able to provide more detailed reasoning.