#30036, "RE: True Coilovers vs. Sleeved Stuff" In response to In response to 6
One thing you want to remember is that not all coilovers are the same. You mentioned preload but not all coilovers let you adjust ride hieght without jacking with the preload (because you're messing with the perch).
For the record, I have Tein SS coilovers. My ride is smoother than most peoples. Having the proper alignment makes a big difference too.
It depends on how serious you are with the autox on whether you want to invest in coilovers. But since you're also spending some time at the drag strip you'll probably want at least adjustable shocks.