This afternoon I tested the Mini-X for magnetic interference. While none was found, I could not save the info and move to the next step because the engine needs to be running and the aircraft moving. I put that in my squawk list for the future . I also noticed the Flight Director was showing a tad low even though the airplane was placed in a level position. To fix that I adjusted the Pitch Ladder Offset by three as a start. Once in the air and in level flight, I will verify this setting.