Im new here and I have I an little question. I try to programme my own quad. I have almost do everything but its time to get it stable and there is my probleme. Whitout PID in action if a push the throttle and hold the quad in my hand I feel a little fluctiation and I would like to know if its normal and what can cause this. Cause a try and retry to tune my PID and I never get something flyable. So I think this little fluctate are the reason but its normal it will need to return on my code the see where I made a mistake. By the way my prop are all balance too.