Between the 2 of us my friend and I have Foreflight and Avare and we are trying FlyQ and iFlyGPS. We were using all four and found that iflyGPS was always showing we were tracking +10 degrees from the other software and the compass. We were getting info off of the same Stratux that we calibrated. I re-installed iFlyGPS however it still tracks +10 degrees. I only had one program running. He is using and iPad and I'm using an Android tablet. Any Ideas?