title_body: What's the advantage of props in VS props out?
upvoted_answer: As far I know the only difference is on the whoops. They fly much better on props out.
  On 2,5-5 inch quads, it doesn't matter. Props in: our camera is dirty, you can stack easier on the tree. Props out: Your flight controller is dirty and then you damage your prop it's a higher risk that pice of the prop damage your flight controller or battery (it is a much higher risk).
  Greatings form DE.