Regarding Checklists.
I have been a Pilot for over 35 years and have flown both fixed and rotary wing aircraft, and for every aircraft that I have put by butt into, the first thing I look for is a Checklist, no checklist, then NO-GO flight. I would think there are lot of very smart drone pilots on this forum with all kinds of experience flying DJI's equipment and that somebody has not produced a viable "Checklist" that can be transported with the drone for each flight. A commercially produced Checklist could prove lucrative to someone. I have used both paper and electronic ones, both serve their purposes. Anyways just my thoughts.