I've had my P3S since December 2015 and haven't had a problem with it. I thought I was in the clear as far as stress cracks go, but lo and behold today I found a crack by one of the screws on the bottom of one of the motor mounts. I contacted the DJI US support dept. but I don't have much faith in their customer support based on what I've heard. Is there anything else I can do? Is the crack likely to spread? It still flies fine but it's really worrying me. Any help would be appreciated!