What are some of your rear suspension setups when your running the 1/4 mile? Air bags, stiffer,springs, shocks/struts. Right now I have a set of sport springs that are about 20% stiffer all the away around. I was thinking of buying air bags that went inside the rear coils, then add air to them once I was at the track. What do you think? I know that you don't want to much squat in the rear when you launch but yet not so riged that it bounces all over the place.