we have really open up a box or ms talking about ebayand so many other places it's not that I don't trust other people I just know what my bird have and I don't know what other people house or their breeding programs I'm just learning but if I was to make 1 suggestion on breeding programs do siblings to sibling rmatings because sometimes it's the only way to find recessive faults I don't know anything about carnation combs but my guess is is it's a recessive fault it takes 2 copies 1 from the mail and 1 from the female like yellow legs in many people selling on ebay probably don't do sibling made in .. but I could be way off base on this I'm just a newbie