First, let's assume for the sake of argument that anyone going to the effort to track their car is serious about performance (if not, what's the point?), thus IMHO this is a place where one size does NOT fit all. Here's the no-compromise route I picked up on from racing formula cars...
Once you pretty much get your final weights (total and corner) and geometry established you ought to get with a racing shock manufacturer, such as KONI North America, and have a set of double-adjustables (4-ways preferred) valved specifically for your car. You'll have to do some homework in order to submit all of the pertinent data, but they'll do all the engineering and come up with valving ranges that should have the sweet spot covered for most tracks. (Make sure and tell them Sebring is among the tracks on which you run.)
You'd then have a valuable tool at your disposal to fine tune transitions into and out of the corners to suit your driving style, track character and conditions, ultimately resulting in better lap times wherever you run. Should you make significant changes to your car which require a different range of dampening, you can always have them re-valved; or should you feel you may eventually step up to coil-overs, start with the right models and you can have them converted down the road, recycling a fair portion of your investment.
Even if you don't go to the trouble to have a set custom valved, at least get some double-adjustables so you're not stuck with one setting or you'll likely be revisiting this issue again very soon. Myself, if I had the budget I wouldn't buy shocks off the shelf for anything resembling a racing effort, and couldn't bring myself to show up at the track on anyone's non-adjustable shocks. Compromise here and you're compromising your car's potential. My $.02.
:beer: