With what do you or he wish to experiment, a mid air motor stop? Or perhaps the CSC?
With default settings and a normal flight a mid air CSC will NOT stop the motors of a Mavic Mini, the drone merely descends in a helix in a controlled manner and will hover when the sticks are released.
If you change the emergency motor stop setting to "Anytime" the the CSC will sto the motors when it has been applied for around 1.7 seconds and the drone will free fall.
The delay period iS too short for it to be safe to leave the setting AT "Anytime" so make sure you switch it back to "emergency only". Drones have been lost because of an unintentional CSC when the setting was "Anytime"
If you wish to attempts to restart the motors in mid air then you
MUST first release the sticks and then apply a second CSC.
It is questionable whether or not you will succeed in restarting the motors as the drone may tumble in the free fall. It is possible/pobable that the drone has a 'window of acceptable tilt' within which it will restart the motors and outside of which it WILL NOT restart the motors.
THe second CSC would have to be held until you became aware that the motors had restarted or the drone hit the ground. If you saw a restart release the stick IMMEDIATELY and be prepared to give the drone full throttle just incase the management system restarts the motors at idle.
A low CSC has been tested and videoed
Someone in here tried it with a
Mini 2? from height, 1000ft+, but did not release the control sticks after the motor stop, the drone hit the gorund. I can't find the video.