So my phantom + was perfectly fine. For whatever reason I clicked the IMU advanced calibration and now its unstable in GPS. I use to be able to sit and spin the phantom with the rudder stick and it would sit and turn in one spot, even fighting wind..... Now it seems there is a huge delay, when I spin the rudder, the phantom flys off 4-5 feet from its position and then tries to fly back to the gps...If I sit there and spin the rudder, it will do toilet bowl moves and spin around.. I've tried calibrating it over on a level surface, I"ve tried the compass calibration.. This thing was a dream to fly, now its uncontrollable. It even seems to wiggle in the air like its hunting a compass setting.. Did I screw up permanently? I made sure there were no metal structures or interference when calibrating.