Wow, their color sure does change a lot! He is very pretty! What do you think about using bantam BLRWs initially to get the lacing like the one in my Avatar.
Mandy can probably address that better that I can. If I remember correctly, she started her BLR Cochins with a Partridge Cochin and a Splash Laced Red Wyandotte. I don't know if the Wyandotte was single-combed or not. I would assume that getting back to good Cochin type will take a couple more generations and more serious culling along the way.