Steve,
One thing I notice when I drive the Tein in the street is the car tend to bounce as if the rebound is not enough. I mean, bounce up and down, and you can see the hood in respect of the road.
Same thing on the track (Thunderhill). Over bumpy surface the car bounced and unsettled. In fact I turned slower lap time with the Tein than when I had with H&R and Koni! The car tend to slide and skip over bumps.
I was lucky enough to try Comptech pro suspension back to back with my car and the difference is night and day. The Comptech pro has almost twice the spring rate in the front and about the same in the rear but the Koni absorb bumps much better. Instantly I turned 3 sec faster per lap, using someone else's car. And I push my car much harder than other people's.
Of course the track condition over there might be vastly different.
You should try to get a ride from someone who has Comptech pro suspension just to get a feel.
I just got back from Thunderhill to do more testing on my suspension setup. I found out, bump setting should be set at 5 click from full soft (front) and 6 click from full soft (rear). The rebound should be 6 sweep from full soft (front) and 4 sweep from full soft (rear). And this really help keeping the tires on the ground.