
I haven't seen anyone mention this, although I have suspected it.
I watched the live timing feed from Instanbul on the official web site and I saw something. I've even emailed formula1.com to see if I can get the sector times for the race for the top 3. (I'm unaware of anywhere else that has them.)
During his 1 and 2 stints, Webber's lap times were very inconsistent. During the laps I was comparng him to Button and Vettel, the other cars were either a few seconds down the road or behind him, and at that time no lapped cars, so he was able to just drive.
In some sectors he was within a tenth of Button (who was doing consistent sector times) and even "purpled" a sector or two towards the end of the stints; on others he dropped up to seven tenths just in Sector 2- and he seemed to have real issues with Sector 2.
A good driver reels off consistent laps one after the other. But to roughly match a time in Sector 2, then drop seven tenths next time around, then match a time, then drop five tenths- no. That isn't a setup issue for that sector becasue it would be a consistent loss. That isn't tyres going off unless they can come on again. Going up and down all the time is the sign of someone who is making lots of little mistakes.
There is an issue- maybe he is overdriving trying to assert himself against Vettel. Maybe the car is fundamentally a "Vettel" car which he has to drive around because it doesn't suit his style (maybe the reduced testing he did because of the leg is showing itself). Why is conjecture, but one thing is true- he can do what is required, but not consistently. And that's not good.
Hmmm... Interesting... Has anyone else noticed this?