As a long term skeptic of using contis in anything other than dry conditions I've been quite impressed with how the rubber queen has been handling the slow descent into winter. It's not a proper mud tyre but I've found it pretty forgiving in the slop and good on the rest.
I have a non black chilli Rubber Queen, it's the worst tyre in the wet ever and breaks away when leant over in the dry.
For sale, rubber queen 29er, three rides old
Haven't tried the non-BC versions in the mud, although a friend of mine seems pretty happy running the 26 versions. He runs them at a much higher pressure than I would and they don't seem to have killed him yet. Even the black chillis I would say aren't a mud tyre, but they handle the stuff fairly well.
Have you tried yours in heavy mud, or more wet roots and rocks? I would have thought the tread was the main thing in the thicker mud, the compound the big thing on roots etc, so I'd be interested to find the difference.