Calling the tower or a/g frequency even when flying above their airspace
I just wanted to get an idea from other flyers regarding this. There are some people who I fly with who would quite happily overfly certain aerodromes at 2100ft (100ft above the zone) and not make a single call, and there are others who even at 500ft above certain ATZs MUST make a call. I'd like to hear from others. In some cases, isn't just listening in enough?