I have 30 BOs straight run. They are hatchery birds, and I know that they aren't "quality" birds like one would get from a breeder. I did it this way because I wanted 30! I chose BO as a dual purpose bird. I would like to do my best to improve the birds I have. Most roos will be going to the freezer, but I will keep one or two to "repopulate" my flock. And I will be looking for better stock every couple years to bring in new DNA. I don't know how many times one can breed in a line before defects start to show up. Can anyone advise me as to what to look for as a good "keeper?" Especially in a good roo? They are 10 weeks old now. I am beginning to pick them up and trying to find the ones with the widest backs, stockiest legs, etc. What else should I look for? What about color? Is dark preferred or a lighter color preferred? I already have the runty ones and the slowest to feather ones tagged as "goners". I'm also trying to determine who will be a nice boy to the hens, but I know their personalities can change once they are no longer one of 15! Any advice is appreciated!