You are correct on all the f1s. I have 2 blue f1 cockerals, 3 blue f1 pullets, 1 black barred f1 cockeral and 2 f1 black barred pullets. They were the best of what I hatched.
Sounds like a good plan what you have suggested, I'll get a start on it this coming spring.
that is good number .2 breeding pen with a spare cockerel .
breeding the blue cuckoos to the black cuckoos ,you ll keep the quality of the barring .
plus your black cuckoo does not seem to carry the cream gene ,
he hasn t too much body color but i like the quality of it .just need more expression . comes with breeding .
you ll do good my friend .you are working to develop a good line in there ,
chooks man