@Mike , I appreciate the worldbuilding effort, and if I HAD to guess associations, they'd be pretty much the same ones you guessed. But, as Helz pointed out, associations are much more useful AFTER we see flips, not before.
As for neutrals, I really wouldn't bother at this point. Only one of the roles (Senator) is scum, and we'll find out pretty quickly if there's a senator. (when we get a demand tomorrow) The other three roles really don't affect our wincon. If someone is feeling "weird, but not quite scummy," I suppose we could put them in that basket, but I just don't see the point. They're essentially playing a parallel game to us.