Dirty air ruined race 1 for me, as I was having to lift off a lot more than those around me in the final turn. In race 2 the SLS felt much better in clean air, and I could run laps close to what JB was doing (1:30.6 was my best). I was able to go faster with fuel+tyre wear on than with it off for some reason; when I'd practiced beforehand I was about 1 second slower than the 1:30.6 . The understeer did still play a part in clean air in race 2, and I hit the wall out of the final turn a few times, and nearly went off out of the right-hand kink early in the lap.