The test isnt complete yet, covid got in the way, he'll be publishing it in the autumn iirc in time for cold weather tyre season.
If you look on tyre reviews there are a number of tests and user reviews of Cc, and you're welcome to ask me owt too, as I did a back to back test of Cc and primacy 3 (here
https://www.tyrereviews.co.uk/Articl...-lgXYHQF8FXXnU also in there you'll find a link to Jon's initial test of Cc and peers) and have used the Cc on 3 different cars, primacy on 2. (Still using the Primacy as yet...)