I know out of the 40 some Marans I have of all different ages, there is no perfect or near perfect bird I own. This is my first year with my birds. I do have 5 seperate lines to play with. And I agree in the theory of hatching out what you can handle, and culling heavily. Gettin down to four or five premium or best hens and one or two roos from each given line. And move on from there. With all the flaws in my birds, I have to match flawed colored bird to a bird with good color but my have no feathers or other flaws in the hopes of getting closer to the breed standard. It will take me at least 5 years with what I have. And who knows by then I might say it takes me another 5 years. I have other breeds that I raise. It is no race for me. I will better my birds eventually. And I will only raise the Copper Blacks and Birchens. And just focus on those two varieties.