Nope - you'll get a rose comb, but it likely won't have the typey "ski-slope" back point that is so desirable. Our Simpleton has a comb like that. He's perfect in nearly all but two areas - his tail is dark, slate blue, rather than green and his gorgeous rose comb ends in a flat vertical point, not a horizontal one.
This is our Flutterbug's mixed comb. His back point is vertical, not horizontal. I don't believe it is a disqualification, but it's definitely not the preferred type. His points are also very upright, which is why you can see evidence of our battle with frostbite. That should heal, with time.
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This is Yosemite Sam - my baby! He is small, with a much tighter rose comb and a back horizontal back point - called a ski slope. His dark spots come from a minor confrontation with Capt C, who sports a similar set. They're separated again, so they should both heal by Fair in July! I LOVE Sammy's iridescent green squirrel tail!
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And this is the notorious Captain Cuddles. He also has a nice ski slope and less prominent points in his topknot. This is not a very flattering shot of him, but it does show off the pretty comb! He took Best Nankin Roo last year at the Maryland State Fair. It was a really small class, but hey, he has a blue ribbon! He's a very handsome boy!
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So, yes, if you breed a those to a single comb, you'll get some variant of the rose comb. If you want a true single comb, be sure to breed only single-to-single. Then you'll get one of these:
Our Feisty, Single and PROUD of it!
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And yes, he is indoors in this picture. He's helping with the laundry (and chasing a fly in the window) while waiting to get his comb oiled. That's part of our playhouse coop he's watching through the window - with Miss Piggy staring out the barn doors. He'd MUCH rather be out there with her!