My RIRs are single combed. And like I said, I guess I'm pinning my olive egger hopes on my BCMs! They're only 3 1/2 months old so no eggs for a while yet, but from what I'm reading (they were surprise substitutes into my order) they can be expected to lay nice dark brown eggs. I know the other breeds lay eggs that are varying shades of brown, but hey green is my favorite color so bring on the EE babies!