I saw this mentioned somewhere but can't find the thread anymore. In the last few days I've noticed stress cracks in the plastic around the motor mount screws. I did pull my body apart to see what was inside and balance my motors weeks ago but didn't go crazy on re-tightening my screws but did secure them down. The plastic used in this craft seems like a flaw that dji should address with future shell replacements. Don't want to spend another 60 to 70 dollars on a replacement shell and have this happen again in a few weeks. I've flown mine probably 20 some times where I've never crash landed but I have done a few tip overs at take off when it was brand new and one on a landing. Maybe this was a contributing factor as these motors have to exhibit some twisting action when they come to a near immediate stop from contacting another surface. I think the prop guards need to be standard equipment and come out very soon. Who else is seeing these cracks?