Quote: Very thought out and expressed opinion..thank you for your input.
I purchased Imported English Orpingtons as adults and breeders. My first hatch showed color leakage. I needed to find out where that came from so I did several test breeding to find the source. I needed to know if it needed two copies of the gene, or one copy, and if both or single parents needed to have that gene. I found that the male carried the gene and so did one of the females. I purchased another male and test breed the hen with the leakage to see if she would throw it. I am still on F1 with her. The male I do not use for breeding, he has been culled. He is flock watcher for my egg layers. A good protector and good with chicks. He gets to stay for now. The hen I might have to place in the egg laying coop. Time will tell. You should always know what is in your foundation. Take good records and remove genetic anomalies. It is easy to remove what you see..it is time consuming to remove what you know is there and don't see.