I think I'm starting to get it, but on the calculator I can't make the rooster look like my comet. It either has black or dun markings.
I suppose it'll continue to be a surprise!
I have 2 comet roos. One is white, but the dominant roo is white with red. I guess it's really more of a light cream color, I don't think the white is as pure as my leghorn hen. I assume it's because they're a cross.