I agree. I was talking to the guys at the shop about exactly that. They said to bring it back this winter if it changes and they'd tweak again to see if we can find the sweet spot as you said. Ambient temp makes a difference in these systems -- no way around it. Still, it seems like major improvement from where I was at when I bought the car. Idle is smooth and strong. It used to hunt ever so slightly. And when I was driving yesterday it seemed throttle response was better, especially on the low end.

The other thing I had done was have the suspension adjusted because the car wasn't sitting perfectly level. Right rear was slightly too low and front left was slightly too high. It was already lowered but they took it down to as low as it could go and the stance is perfect now. Had to have the alignment re-done. It was good before but I was shocked at how much better it felt in the twisties. I felt like a kid in a candy store!

These cars are about as much fun as you can have with your clothes on. :D