Wow, I just installed Flytrex on my Inspire 1 and started having the same issue: Compass Errors! I thought it was my firmware update I just did moving to 1.4.0.10, but based on this thread realize I need to uninstall the Flytrex kit. Too bad!,,,,
Yes, I have actually calibrated dozens of times but see the same issues intermittently during flight. I had none of these issues until I updated to the 1.4 firmware.
I am a private pilot and had until recently owned a twin engine plane. I recently got completely smitten by the videos and marketing of the Inspire 1 after owning much smaller quad copters over the last few years. The Inspire 1 for me was finally an example of a well put-together ready to fly...