Strategy presented something of a dilemma at Baku, partly because of the complications in choice of wing level (see Tech), partly because of the behaviour of the softest tyres in Pirelli’s range here, the C3, C4 and C5.
Skinny wings were good for qualifying, bad for rear tyre degradation in the race. So wing choice became an intrinsic part of a team’s strategy choice and there was an element of game theory to that. The best trade off between qualifying and race pace could depend on what wing choices your immediate rivals made.
Neither the C4 medium compound nor C5 soft tyre were reliably capable of long stints around Baku and their degradation rate was high enough that the hard would be faster than the medium after around five laps and faster than the soft after around seven.