Oops. Sorry Belsimtek, I didn't look closely enough. Haven't seen such a weird ADI until now, looks counter intuitive. Me saying that you don't care was due to a feature which I think is missing from the Huey module. While the real ADI "drifts off" after shutdown and wiggles itself into position after energizing, yours seems to be perfectly still when starting from cold and dark so I gathered that it would be the same on the F-5E, as seen in the preview video. My bad, let's wait and see.