I currently have H&R race springs, koni yellows, ITR rear sway, and I'm thinking of changing the springs. The rides a bit too harsh and too low. I was thinking of putting H&R sport springs in the front (sport are 275lb and race are 460lb) and use the race springs in the rear (350lb for race and 275lb for sport), I can even out the ride height because of the perch settings on the koni's. What do you think? Mostly driven on the street, only on the track 2-4 times a year, thanks.