Rainbow pretty much covered it (thanks man
). Always study your footage closely if you don't intend for any scratches to appear. In first person especially, many people knowingly scratch up their plane but upload anyways. They either don't care (which is fine) or they hope people won't notice...I won't tell people what to do, but if you're looking to impress, scratches simply look bad.
You want your stunt to complement the aircraft and what it can do, so touching an object rather than avoiding it (in most cases) detracts from the display. Wall plants and grinds in a jet aren't my style, so I won't comment on those. As for pointers, all I can really say is go all out. Whatever you want to do, do it to the best of your ability and it will turn out great! It will take time for me to make another video, but I will make one.