Some background: it rained Friday morning, and the track was declared "wet". By 1100 the track was starting to dry out, perhaps to the standards of "damp", but the stewards made the decision to require rain tires for everyone for the entire morning (skidpad & accel) session. Everyone was waiting until the end (1200), as it was clear the track was getting faster by the minute.
With our overall concept, GFR doesn't expect to be near the top in c-car accel. In skidpad our drivers made some mistakes due to the challenging conditions.