Uhh...Hrm. Didn't think of that before. Typically the only people who use Body-Copy scrolls have Anime Girl Plague, so one of them is invincible and can't die...So I don't think so.

On the other hand, until the day the other dies, reportedly, the surviving self will feel eternal torment until the grave. I wouldn't do it.

EDIT: Hajime, I literally lost to the very first Pokemon I saw. Did OhJay ever do that?!