it would be extremely easy to tell which ball pythons are ghosts if you have a known normal to compare to or a morph other than ghost/hypo ghosts and hypos produce complete white sheds if you compare a known ghost to a fire shed you can tell the difference immediately there was a thread somewhere on this website a long time ago with pictures of a hypo shed and a BEL shed and the ghosts shed was practically pure white the BELs shed was yellow just save the shed of the snake in question next time and take a picture and post on here