Michael,

I find that those without an engineering
background find it counterintuitive and need a lot of time to get used
to it.


If I may: So what? Who says things in life have to be easy or
"intuitive"? A GPS does very complex things. So it is complex to use. Is
any of those people you teach really of the opinion that a CDI or an ADF
are more "intutitive" than a moving map? Yeah, right...

--
Thomas Borchert (EDDH)