Duratracs get a little loud when they get some mileage on them. But even at half tread they are better in rain and snow than my KO2s with 8k miles.
Sounds like they are basically a good wet and slippery surface tire. I can see the Duratrac doing this better than a KO2, as the Duratrac probably caters to more types of conditions as the K02 to more general off roading.