For once it's not for registration. It's for me and the car, I can't adjust corner weights properly cuz I lack adjustment on the rear susp. Plus I cannot imagine my added weight and a heavily preloaded spring will drive nicely. If it's still too soft the way it is now, it will rub on the inside of the fenders. Swapping springs is so damn easy compared to everything else and cost is low, I will give it a try. If I don't have timebefore registration, that won't hurt registration.