I just got back from my first flight with Go 3.1.1, and it was a similar flight as my last post. I went out 20,226' on this run with connection problems around 17.5k'/18k', so I'm not seeing any differences between the two Go apps. I had lighter winds and a different battery on this run. I could have gone farther on the first run with Go 4, but I didn't know if I'd get back home safely due to the higher winds.
Before my flight, I did an IMU, gimbal and compass calibration but I still had a little horizon issue during the flight. It gave me the same problem trying to fix it with the app and the buttons, but this time, I leveled it out using the buttons after messing with it more.
Overall, I will use whichever Go I just happen to open at the time unless I spend a little more time finding something worth staying with one over the other.