There is a decision that needs to made about this time. Since Randy complained about how rough the Track mode setting was during the first test, GM created a new soft mode software algorithm for the dampers. This new setting is not yet avaliable on the Z06 and may be offered as an aftermarket addition. See the quote from the article:
The car hadn't been developed on a rough track, which is why Pobst complained it was too harsh at Willow Springs and was beating him up. Pobst actually preferred to run the car with the suspension in the softer Sport mode. As a result of this new testing at Spring Mountain and additional testing at Willow Springs, Chevrolet developed a new Rough Track mode for the Z06 that softens the dampers in Track mode. Chevrolet plans to make this software update to the Z06 available soon through the GM Performance Parts catalog, and our test cars at this retest were both fitted with the new software. We cannot say, then, that the improvement in lap time was due solely to the corrected rear alignment, as it's possible the new damper programming also aided the Z06's performance. "The ride was far better than the last car I drove, in Track mode," Pobst said. "It made it so much easier to drive. It was still firm. But I don't think the ride was really that important. I think it's that alignment issue because I don't get that rear steer anymore.
I think most of the improvement came from fixing the bad alignment but the car was not truely