Here is the base setup I used at Camarillo. A little bumpy on some sections of the track with good condition asphalt. Traction varied from Med-high in morning to medium in afternoon, max track temp was 130F. Car handled well during the whole day only requiring a little more aggressive steering input as track temperature increased. Most important thing I found on asphalt is to mount your body far enough forward. *SEE VOLKER and PRUMPER body photos on asphalt tracks as guide.*