Rode the Cli-machx and Llandegla both in dry and the Slash was great accept on the wet rocks. Have used it in the mud aswell and all seemed safe at the back end. I thing they are more of an all round tyre than a mud tyre
Germany must be muddier than I remember given the number of their tyres that are aimed at mud. They all suffer the same problem IME, it only takes riding to a few trails to wear out the centre of the tread. I still use them though, faute de mieux.