Thank you for posting those ownderful pictures, the two without neck feathers(clean neck) is carry double gene, if this is a roo and you use him to breed to another double gene, you will get "almost" all showgirl(I didn't say 100%).
Showgirl haven't been prove to breed true, not by me anyways. But if some expert like to steak their claim, hay, every one entitle to their own opinion, I will not agree or disagree.
If your roo is bow tie showgirl, hens could be single or double, chances are you will get some silkie.
Please keep us updated with photo, I'm wonderring about the two dirty ones
I had some that gray/light blue show up later.
Fowlrus/Angie Schertz TX - home of the showgirl/silkie and marans