1. Upon starting Skydemon on my PC, the map does not get drawn until it gets a callback from a move request.

Is the circuit diagram a specific size/distance from the runway or just diagrammatic to represent the circuit direction. I had assumed (maybe incorrectly) the latter and that it was not intended as a track to follow in flight so that the it could be redrawn at any scale when viewing zoomed out, if not then what circuit dimensions are you assuming as these will change from airfield to airfield?