as far as setting I use manual mode with shutter speed between 800-1000th, aperture around 4ish and iso at 100. where it’s set depends on cloudiness and how I want the pictures to look. take test shots on the way to altitude if possible. one other thing I do is set the center of the picture as the focus zone. by doing that the camera was able to focus faster. best guess is that it doesn’t have to search the entire scene and figure out what I want to focus on. downside is sometimes i wished it focused somewhere else. same thing with going to manual versus auto, doesn’t take time to process the scene and figure out what aperture, shutter speed, ect to use. bigger downside if the setting aren’t good, you could have dark pictures or blown out pictures that can’t be fixed with editing. upside to both of these is faster focus at the door and faster continuous shooting
play around with the camera a good bit before you take it up. there’s just as much to learn about it as there is skydiving and every camera is different.