I know I post too sporadically for it to be worthwhile checking here much, so I'm happy you stopped by when you did!
I think my babel fish is a mostly unconscious process too. I don't set out to talk to people in their language, it just seems to happen. It's been interesting watching that become conscious as I'm trying to write. After reading your comment and some others here, I think the solution is to let it go -- just write what's true for me in the moment and see what happens.