Hmm, you mean when the gene reverts back to functional protein production in a given area? Interesting ...
I do also like the idea of super fires being a form of piebaldism ... I've seen a few that really look it, too.
What I find so fascinating is that these animals (snakes) seem to have so few other congenital defects associated with these pigment defects ... It seems like in other animals, there are often a number of other defects associated with piebaldism, albinism and leucism that don't seem to be present in these snakes.