Minute 22:25. This is two years old but was in another site and I came across it. I guess he decided to go back to Case 2.
https://www.youtube.com/watch?v=JFZ0J27zSI4&t=46s
I don't think it matters which Case you use, it's the Tracking sensitivity and Accel/decel settings that matter. Like Mr Whistling Wings, I've been using Tracking sensitivity -2 and Accel/decel +2 (but from Case 1) for a while now and it seems to work well for birds in flight.















