Ianj37, The problem with GPS is that people become over reliant on it. A 'why bother with map and compass because its difficult compared to looking at the GPS screen' attitude. As has been stated several times elsewhere on this forum. GPS is seductive even to the most hardened of map and compass navigators, who in turn have relied on GPS and come unstuck.
However, I certainly agree with all you state in your 10 May post. Map and GPS is not a bad philosophy, but GPS is the back up. Assuming the signal are not corrupted GPS gives you an undeniable position fix but does little for situational awareness. On the other hand a map is second to none for that.
Certainly on a recent holiday in Namibia, GPS was very useful. Driving vast distances. Miles upon endless miles of uninhabited desert, mountain and bush.
The only mapping available was 1 million or 1/2 million scale. Very little topographic information and so not easy to position fix unless one happened across a very infrequent road junction or was on a wiggly mountain road. OK could have done it by timing and distance etc particularly on the endlessly straight roads, but GPS was far more convenient. So GPS came into its own here.
Grab a lat and long transfer to map and all was well. Maps had lat and long grids, but their register with the landscape seemed to be a bit out in places. But so what. Using both we were certainly able to know where we were in the landscape. Good situational awareness.