There is a pretty dramatic change for me with only the manifold done at this point. There is definitely some loss of power between 2-3K... But the car now screams going past 3K... The actuator changes are actually very noticeable. Right at 3K there is a change, and another very noticeable one at 4300 RPM.
So far it's been a week in with no problems. I'd like to jump on the AA tune sometime next week. I don't know if it was the battery reset or not, but the delivery of power seems a lot smoother now.