Strange as it sounds, you only need to get a -3dB drop in sound level, for the sound to be 50% reduced ... That's the way the decibel scale works (it's logarithmic). So this may not be 'Laughable' after all ... There are lots of on-line references if you need to check this out ...
Correct @brett8883 ... The Mavic is inherently unstable and needs constant feedback to maintain position when it's left to hover. It uses a set of feedback loops to increase and decrease the rpm on each motor to keep it stable. When you put the 'more efficient' MA prop's on, then the feedback loops can be unstable because the control inputs are too good! The Mavic might start to tremble as each control input pushes the aircraft that little bit too far, which then has to be compensated by a push in the opposite direction, which pushes a bit too far etc. The effect of this on a Mavic Pro with a 'floating' gimbal, is that you'll see camera shake ... Turning down the Gain sensitivity 'tunes' this feedback so that the Mavic will compensate just enough - without getting into an oscillation ... Just setting the Gains to 80 is an approximation, and if you want to do this properly, you need to make small adjustments and observe the effect on the Mavic in hover ...
