Hembery stated in a SkyF1 interview today that the problems experienced at Silverstone were partly a consequence of Pirelli getting caught out by the faster lap times this year compared to 2012. Last year's practice and qualifying sessions were severely compromised by wet weather and that the race day was not exactly a heatwave. Perhaps they should have had the nous to try and get some data from teams relating to the fastest of recent seasons which was in fact 2010 (incidentally the first year of the current circuit layout). If Pirelli used Silverstone as the gold standard for the hottest and most demanding (on the tyres) circuit on the calendar, then 2012 was not the year to go by.Not sure which was the hottest race last year but it sure wasn't Blighty.
Maybe I'm just a misguided couch potato. I thought I had common sense and a memory, thinking that racing drivers have always cut the kerbs and race teams messed with cambers and tyre pressures, etc. Also had the misguided idea that it was under the full gaze of Pirelli technicians, FIA scrutineers and technical delegates. Oh, well there you go, maybe it's "seeing the wood for the trees" problem.