Thanks for the link. That was interesting. I did PM a guy who started a sexlinked thread a while back and he answered saying no this won't work, so I guess if I'm going to continue with my red sexlinks, I'll need to get some more Delawares or a nice Delaware cockerel down the road. I'm not sure how long these Delaware hens will be productive, they are going into their second year and I see a drop off in egg production now. I'd rather not get hatchery birds, been there, done that.Desertmarcy
Your answer may be here:
https://www.backyardchickens.com/t/661657/can-a-barred-rock-rooster-have-an-unbarred-offspring