Just a quick question, I have performed a live calibration on the compass and consistantly get around -170, -50, 50. I know in the wiki, it says to aim for < +/-150. My question is how can I reduce this? I have tried relocating the apm (internal compass) however I continue to get the same results. I managed to get the compassmot down to 16% (from over 400%!) however the calibration offsets don't seem to change. Will this have any negative affects?