+1I navigate from a non moving position if I need to reference a map/gadget. I'm pretty good with basic navigation, and aced all my nav courses in the Marine Corps. That being said, I usually map out my routes by main roads and reverify at gas stops or "where the hell am I?" stops.
I use the old-style navigation, a good map printed on paper!
Keeping your eyes on an electronic navigator for more than one second is a danger IMHO.
I prefer to study the map before leaving, then if I get lost I stop the bike and take another look