Yep, at least two tyre delaminations this weekend. The 2012 spec tyres seemed to work ok last season. Perhaps they should have kept the same spec of tyre this year. Allowing Pirelli to spend most of this year work on the 2014 spec tyre, which given the change to smaller turbo engines might have an impact on the tyres.
I think mercedes made a mistake not going onto a four stop race given their high tyre wear.