Where did you get this suspect axanthic pied and how much did you pay? It is a pricey combo that nobody would sell as a normal pied. It is a somewhat difficult morph to produce and while it is possible that someone just happened to have 2 DHs they didnt know about its a very small chance and breeders usually know what they are trying to produce when breeding for one. I will try to find some dark pieds for you...