Well...NLM is a resource hog by design. However...unloading NLM will free up those resources eventually. Best bang for the buck would be to go back to using LoadModule and write a short script using textedit to convert OTS2 themes to your standard. If you REALLY wanted to slim down your build I would uninstall omar's installer, install the latest build (24.7rc2) and build something from scratch. For LS to load all you need is a blank step.rc in $LiteStepDir$. From there is up to you.