When people bring me sheds from normals that they think are "clear", there is always some type of very faint pattern that they are just not seeing ... once you hold it up next to an actual shed from a hypo/ghost you really can see the difference.
That's probaly what it is then. A very faint pattern that is hard to see. My other BP's sheds are dark. They have a very definite "brown" pattern left behind. This one is like a whitish color.

I didn't think it was a ghost, just didn't know some BP's sheds have faint patterns.

Thanks.