I'm really interested in the Tein RA or HT coils for heavy autocross and occasional road course work. My car IS street driven for now, until I can get ahold of a good beater, but I dont mind a rough ride one bit. Does anyone have experiance running either of these sets on their EVO? I'm racing STU this year but will most likely be in SM next year, if that makes a difference between street tires and slicks.