Just received my P3A back from DJI due to stress cracks...The lower shell was replaced in addition with "new" motors and I assume flight board. Also the firmware is 1.32 which is earlier than the 1.4 version at the time I sent it in. It does seem quieter and a bit smoother as well...not sure on the flight times yet. I did have to rebind it,...so I will have to do more testing with it, in the next day or so...