Idk, Dave - sounds like the idea of stuffing the wysiwygs into acs-templating is getting messy. Personally, I don't like the idea of auto-mounting acs-templating, at least not based on the rationale provided.
What about moving the editors to their own plugin type package that could be mounted if necessary? Define an interface for editors... store config info within each package instead of stuffing params into acs-templating for each new editor we want to support?