I was talking with some friends about a game concept I'm working with, and one of the comments I made was that I was considering giving some control about a sort of "inner voice" to different players. Something similar to how Wraith: The Oblivion used to work. One of said friends said that the mechanic didn't work.
Personally, I have no direct experience with Wraith, so I could only tell him that I felt the problem was with the System (Lumpley's way), not with the concept itself not working. But I felt I need a little more information about how things really worked in there.
And then I decided to come here with my doubts and concerns.
So, Story-Games people, how were your experiences with the game? What worked? What didn't? Did that interaction ever resulted in some cool roleplaying? How often was that particular rule ignored? Which were the most memorable play experiences you recall?