For daily use get PS3 performance and get some negative camber setup -1.3 to -1.6 if you want to attack corner. if for time attack in track many real semi slick can go if budget limited go toyo R888.
Isn't semi slick more costly, many use extreme level only....RS-R, AD-08R, KU-36, RT-615K, NS-2R, and 123


