I'm guessing the prepped the hell out of that track in light of this special week long event - normally, ambient temps that high and the resulting 140+ track temps result in a lot more aborted passes than they had today, concrete or not. I attended one of those a few years back; it was so hot that in Q1 a mid 6 put you in the top half of the TF field and the evening session saw track temps still around 135. A gorilla track today once the sun went down, as witnessed by Force's 3.63/335 and more than one side-by-side 330+ in FC.