You can see from the composite image below that resetting EXP is easy. Top left corner is the reset buttons. I'm not sure if you have to reset the normal and sport mode settings separately. The Advance (gimbal) control with Yaw settings does not appear to have a reset button
The image below is part of a lengthy thread that I started. The bottom line of it is that yaw (and gimbal) in three modes is handled in the advanced gimbal settings menu. However forward/backward, (slide) Left/right and up down are adjusted in the EXP settings. IMO, ideally you (or at least I) want the the stick movements and drone response in all directions to be "balanced". I find that this is what way to get the smoothest flight and consequently film footage. I found that it was disconcerting when the yaw controls provided a nice smooth response, but if I wanted to slide left or fight, up or down it was pretty jerky. IMO this becomes important if you're trying to make compound moves, such as yawing and sliding sideways or moving forward of backwards at the same time. I have found that analyzing the smoothness of my compound moves was key to getting the sticks/and response somewhat balanced. It took some more figuring out and over a year of flying the
Mini 2 to understand that all the settings weren't done in one section, but some movements in advanced gimbal and others in EXP.
As a side note, this experiment/discovery in the
Mini 2 has helped me understand the
Mavic 2 as it only has EXP.
If you want more of (long) explanation do a search for "The hidden secret sauce to finer control"
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