We are only keeping the easily autosexed anyone who is not easily sexed are labeled as culls and used for eating or egg layer flock but not labeled as a Rhodebar at all. I agreed that is why we have been culling heavily on these. Most hatches come out great with several very easily sexed chicks but sometimes not so good. We currently have about 12 cockerels growing out for the freezer.I would not sell any chicks from them if it were me because you will not know until they feather out who has lacing. I would breed them and then raise a bunch of chicks. Keep only the chicks that are very easily autosexed. Cull the rest. Then out of those you keep, keep only a couple who feather out the best. Then cull the parents.
Now you have more dependable breeders.
That's how I started and I put a LOT of RB in the freezer, but I firmly believe you have to assure yourself of what you have before you can begin outcrossing. Otherwise you will be able to be confident about the quality of the chicks you are producing.