if you want the car to be aligned right you have to compensate for normal load on suspension, i've ran into problems aligning cars with very large drivers, so if you want your car excatly on spec, buy a front and rear camber kit, and have it four wheel aligned, camber is extremley hard on tires, espically negative camber which is present when you lower your car, i am not saying just cause your car is in spec, makes it handle the best but if you , but if you just drive your car everyday on the street put it back to factory spec for max tire life and even wear. As stated by an ASE CERTIFIED STEERING AND SUSPENSION TECH