I know a few of you already are experiencing noisey motors likely from the bearings. I have a friend out here at the university who had a motor show signs of inevitable destruction and so he turned to the web and got his hands on a set of those $3 iris motors 3DR was selling. Turns out they work quite well. The solo props spin right on, stock tune works fine with them and since they're a t-motor instead of a Sunnysky X series quality should be better in theory.
Hope this helps someone and have a good afternoon.
Hope this helps someone and have a good afternoon.