Does anyone have any experience with the Rancho "Quick Lift" shocks? I want to level the front of the truck, and I know everyone says how great the PRG spacers & stops work, but if I go that route I will still have factory shocks. Rancho is offering a $100 rebate if you purchase a set of "Quick Lift" shocks/spring for the front & a set of their RS9000XL shocks for the back. I just don't want to be the guinea pig for a new product. The price isn't bad even without the rebate.