To produce your best blue, I would probably breed to a black cockerel. What does your blue cock look like? Is he a dark blue or ? If he were dark enough with good type and lacing, I would breed to him. If you breed blue to splash you will get 50% blue and 50% splash. If you breed splash to splash, you will get 100% splash. It would be helpful if we saw a pic of your blue rooster.
