Flying in Bavaria seems to have tasks for secret fraternities ...
I finally got an impression what a "Sonderlandeplatz" is, but am still struggling with the concept of airfields disappearing outside operational hours, which seem to be a major component of German thinking. After some talks I expect to see giant elevators moving airfields underground after hours.
I am in contact with EDMY now and it sounds quite well. Also, EDMA was named by quite a lot of people and may be the better field of choice - but, then I need to rent a car and drive almost 65 miles to office, which I did not expect.
What a messy area for "private" flying.