When I do wild, then I use the imagination- which I make during hypnagogic stage.
When I do OBE, then I don't use imagination. I use feeling and feedback from that feelings to change state of the mind.

I read some experiences where someone mentioned OBE exit to the dream. I'm not sure what to think about that statement. If I use imagination for "leaving" my body, then It wouldn't be OBE, it would be WILD. There is quite big difference between OBE and WILD