I prefer to fly with the guards, just to avoid engine damage in the event of an accident.
for everything else, I like to use Tello as if it were a professional drone. naturally within its limits. I don't see it as a toy!
Hi, unfortunately, after having built this reflector due to the weather not suitable for Tello, I only did a test flight about 100 meters away with a 90db signal, but I hope to fly again soon when the strong wind and the rain calm down. .. But I still have to better test all this.
I enclose some images.