Ok I will say that some of the problems I have seen in the Blue Copper males are very mahogany wing and light hackles. Kinda the same thing as in the BCM males but is more pronounced in the Blue Coppers. The hackles can get really light almost yellow with the blues it seems. So copper balance is something that needs to be worked on. Also some Blue Copper males seem to get color in the hackles and not as much as the saddles. Poor boys...they are always more picked apart than the girls no matter what breed LOL!