Please tell me how it did not work in the wet - (Tom Knowles 2nd in the A final qualifying) As you said?? Did you try driving one?? I did on yellow mini spikes in the wet because we did not have time to change tyres so nothing would have worked on those tyres in the rain
so rather than speculate that they did not work maybe ask the question? Do you know why those using them changed cars because the answer is it is easier to put a car down that is all set up for the wet rather than make lots of changes to the KF as when you have 3 leg finals and not a lot of time its not worth missing a round due to making car changes !