White crested black silkie

[luckiestck1]

Hi everyone
Was wondering if you were to do a white crested black silkie project how would you do it? Would you breed the f1 x f1 or f1 x silkie?
I was thinking of breeding my black silkie female to a white crested black polish rooster to create f1 generation.

 

[The Moonshiner]

F1 Xs F1

 

[luckiestck1]

That's what I was thinking.