surely ss in ordinary races, but when u enter an endure race, what do u think? still ss? i usually choose tyres after certain thinking: in ordinary races, using f soft/r soft for cars that neither under-steer nor over-steer, (sometimes f m/r m). using f m/r s for cars that over-steer but not too severity, using f s/r ss for cars like TVRspeed12(what a spin machine!) using f s/r m for cars that under-steer(most FF cars). i only use f ss/r ss on R390 roadversion which is completely tuned. it's difficult to choose tyre for the power monster---HKS 180 sx, is there any good advice?