I have two pens of these beautiful birds. The bantam cochins are simply one of my favorite breeds of chicken. They have so much personality. I couldn't resist when I had the chance to trade to get these birds as chicks last year.
In my CO2 pen I do have a bobtail hens and a mottled cochin hen and a black hen so you may get some black based chicks from those eggs. They are easy to distinguish at hatch.
Each of my pens has frizzled birds. In CO1 pen there are two roosters: one frizzled and one smooth. In the other pen I have two frizzled hens.