You shouldn't rub. Go for it.
I ran Whitline Flatout Springs (similar height to S-techs-for sale super cheap) w/225/45/17's on 17x7.5 Rotas and rubbed a tiny bit in the rear -on hard hits or too many people in the car.
Once I moved to Prodrive springs no more rubbing (and I never removed the strip-I almost burned it off on an aggressive canyon run (^_^)