When I had a batch of all roos partridge rocks I didn't like they all were sold.
This batch is better. I'll keep the best pullets, one of the best Roos, raise and butcher the other roos, sell the other pullets. Over and over... since I'm improving a group of production PRs, I get to add cochin and barred rocks and sort. And breed to those progeny, and sort. Add dark cornish... and sort.
If I keep the pullets I don't want to point of lay, no one around here minds "mixed" birds if all they want is eggs. Eventually I'll have a nice group of heritage partridge rocks.
I want a small flock of turkeys to do the same with over time.
So that I can get one of those nice bators and the chickens earn their keep.