Just a raise of 3 degree Celsius between FP2 and FP3 and M tyres just went out of the operation window, for HAM did replicate the same time! Although, Rosberg said on Sky that the main reason was the wind and Merc engineers were baffled about why medium tyres were quicker ... is that so?
Seems to me that Merc setup their car more towards the medium (race tyre) tyre or just their chassis is kinder to the tyres, hence why they struggle to warm up faster the tyres?
What it is interesting to know is why RB was 7 tenths slower in Q2 on medium tyres and even VER said in the pen interview that he was shocked about HAM's time?
For me, it`s clear that Merc overheats the soft and that`s why they were taking slowly the first sector in order not to overcook the third one. And this is down to how they were setup the car for the race ...
Then RB couldn`t heat up the medium tyres coz they have a higher operation window and in contrast they keep the soft tyres in the window coz they setup the car more towards the qualy ...