I have a pastel that was sold to me as a Lemon Pastel. For a while I was just calling her a pastel, since I have NO proof of her genetics other than the word of my breeder. After seeing so many pastels though, she does have a yellow that seems will stick with with her through adult hood... I hope. Also, I've read some about NERD lemons and they say that most of their lemons have a stripe on their neck. Snickets has a broken stripe... But that's most likely just coincidence.
If I produced offspring by her, I wouldn't sell them as Lemon Pastels. Unless the guy I got her from could give me paperwork, which I doubt, I would sell them as regular pastels.