Yesterday I was flying at 7500' for about 1.5 hours on a return trip. I decided to try the export track log feature that is new to the latest version of iFly android. When looking at the file in a GPX editor, the cruise altitudes show around 15,000 feet. I converted the file to a GDB file and opened it in Mapsource and the vertical profile also shows around 15,000 feet. Seems like the altitude is off by a factor of two. Any ideas?