let me say first that I like the bloke.
Having said that, and from someone who has watched the touring car championship since 1977 and him for twenty years, he can be too greedy with the kurbs, wears his tyres out because he chases too hard/over drives and I believe this has cost him a few championships.
I also believe that 888 knew they had to take some risks this weekend to get closer to Frosty and they may well have also been too greedy with car setup that may also have caused extreme tyre stress.
Just my opinion guys.
Cheers
Rob