I remember this post from a while back. The last reptile expo I attended I saw this same patterning effect at one of the tables and made a mental note based on the previous questions/photos you had shown.
Working 60+ hrs/week for many months--I can't remember much of anything now: I do remember it was an odd two gene interaction and one of the genes was one that I had no interest in. It may have been Specter, but, I cannot recall.