[karlicoss]

Ah agree, your example makes sense!

I guess it ultimately depends on the usecase, I just gave the above as an easy to understand example. In my case I wanted something that merely merged multiple distinct directories as a unified view (just for convenience). Ideally they wouldn't be overlapping, but I was still a bit paranoid about this behaviour.

In addition had another confusion, the default policy for creating new files/directories was epmfs (create at the "most free space" partition). So as a result, when I created new directories/files, it seemed to do that seemingly at random.

Of course my bad, should have been a bit more careful, the man page/readme seem to explain it well :)