Love the white. I agree with Dan, take a RC black female and cross it onto the largest and best typed SC White male. I am very impressed with the stature of your males. Do you have any pics of the cuckoo male? I wish i had room for whites and buffs, I would raise all minorca varities if I had room for them. Make sure you give them plenty of room to develop and grow. Keep up the work and keep us posted on your development.