Thanks for the replies!

I knew that producing such an animal (and confirming that it was double axanthic) would not be an easy task. I don't think I'd take on the project myself. But at the same time, I bet a lot of people out there would love an axanthic that didn't brown out. So I thought maybe someone might have tried it.

Fireball, the general concensus seems to be that the VPI line of axanthics is best because it browns out the least. So that might be why Snake Keeper sells theirs for a little less.