Yep max was doing some late lunges with the inters when they where still for damp tracks, as soon as they switched to slicks the non-dry line was too slippery and they could not break late in to the corners while overtaking so any overtaking was done on straights which is how max got past Vettel in the end to claim 7th... and why Lewis slid off the track as he didn't ahve the speed to get past Vettel on the straights and needed to use the corners.