I'm looking to get an Anafi to film professional skiers but one thing I've noticed with my mavic pro is I can't keep up with the athletes for very long due to the slow rate of descent. I've been looking everywhere to find the maximum descent rate of the Anafi but can't seem to find the information anywhere. Does anyone know what the maximum descent rate possible is?? Also, I know the upper vertical ceiling is 150 meters but is there a lower limit to the vertical distance I can travel below me?? Thanks!!