I just stared using F mode with Litchi. I am finding that I need to switch to F mode to load the mission and fly it AND after that fly it to a height I am comfortable with to have the mission "Go" I really haven't used F all that much. It seems stable, and it easy enough to go up in altitude but what is really, aside from the ability to use DJI or Litchi features with it, the difference in flight characteristics? Is it pretty much P with more cool options, or is it actually very different? Thanks!