I have had a lot of Toilet Bowl Effect lately, seems to be worse since I installed a gimbal. I recently moved the gimbal back more towards the center of the Phantom for better balance. The TBE seems really bad. Is it possible that the magnets in the gimbal motor are affecting the compass? What are the best things to try besides calibrating the compass to correct the TBE. Would calibration help if the gimbal magnets are the problem? Compass values seemed to be in the normal range when i connected to assistant software.