Winter & darkness is no problem for us. At Kleppe Slowflyer Airport we use the uplights that light up the shopping center to illuminate the Moth. Approximately 250m altitude is no problem if the wind is right. An excellent slowflyer airport, especially for night flying. Notice the daft looking flying cap.
Stenrusten Slowflyer Airport is usually only awailable early in the morning, due to lots of football hooligans later in the day. For high altitude flying nothing beats lying down on the tribune, not having to bend the neck.