It's interesting that he thought you wanted them for autocross at first. From what I remember of SCCA's stock classes, the cars stay stock but shocks are open (maybe front sway bar too? can't remember). So you end up with all these goofy shocks like all rebound and then racing on the bump stops. If that isn't practical the other thing that I suspect happens is a massive amount of damping to simulate harder springs.
If he had that as a starting place for revalving yours, it's possible they are too hard for the track. Spending more time with two wheels off the ground might be a symptom of that.