If this has been addressed I do apologize... My quad 550 is spinning on takeoff but level, not flipping over. All the trims are zero and the quad has been calibrated. The spinning is quick fast.. I wish I could take a video but dont have a third hand to record the video.... is there a solution that I am missing? Im using KDE ESC's.... This is the first time I have seen this erratic behavior. Thanks to the group for the past help!