I'm wanting to breed the silkies I have to improve type while selling culls as pet quality. I would really like to keep a variety of colors. I have at least one rooster and one pullet of each of the following colors: White, Black, Partridge, Buff, and blue. I only want to keep 2 roosters for breeding. I unfortunately don't know what the base color of the white pair is. So, if you had to choose 2 roosters to keep...what colors would you recommend. Thanks!!