They are both very cute and timid young roosters now. One of them does lack the rose comb gene and ended up with a straight comb. It’s really cool. Makes him different.
I raise Rhode Island Whites which also have Rose Combs but I have had a Single Comb but not in a very long time. I sold all of the ones with the Single Combs because I didn't want them for breeding but they are good egg layers.