There have recently been several threads where the finger of blame is being pointed at the compass for causing erratic flying behaviour such as toilet bowling (our new P2V phenomenon) and drifting in flight. Infighting between the gps and compass seems to be a real issue. A couple of questions: Is it acceptable to store a battery near to the compass in your flight case ? Is it recommended to degauss the compass at regular intervals ? Any other ideas for keeping your compass in tip-top condition gratefully received Edit: another point - it may now be time for forum elders to consider altering their advice to newbies which at the moment is not to switch into NAZAM until they have some experience under their belt. As long as newbies are told not to switch into other modes until they understand what they do, there is some logic in all having ATTI available as this seems to be the best first course of action should your P2V start to misbehave in flight.