Yes, I understand about a mixed flock. However, one of the easiest way to improve your flock is with a higher class of a rooster, even if he is over a mixed breed of birds. It is a quick and easy way of adding fresh genetics to the flock. I thought you were going to pick a specific rooster for the breeding. If so, you want a rooster that is as physically correct as you can get him so that there is a better chance of those characteristics showing up in the new hens you get from him.
However, it takes intensive breeding, ruthless culling to truly improve your flock. But most flocks will keep making eggs even if they are not perfect.
Mrs K
However, it takes intensive breeding, ruthless culling to truly improve your flock. But most flocks will keep making eggs even if they are not perfect.
Mrs K