I get the impression that it can be hard to tell mystics from low-grade mojaves ... There's a gentleman with an ad on the classifieds right now selling "possible mystics," because he bred mystic x mojave and couldn't confidently tell the babies apart!

I have a female mojave that looks, to me, EXACTLY like a phantom (I saw a big one in person at NERD, and honestly thought she could just have been my mojave gal ) As Stratus says, it seems like it comes down to trusting your source with these morphs ...

The only thing I've consistently noticed in pictures of specters is the neck stripe. I know I couldn't pick one out of a box of normals, but then again I don't have one, so I really can't talk