Chaps (and Chapesses)
I'm amazed that you can get so steamed up about "The Best" navigation technique.
The best technique for any individual is the one that works best for THEM!
I have my favourites, but as an instructor, if the student is struggling with the nav technique I teach, then I sit them down and try to find out why.
Quite often the answer is to teach them a variety of techniques and after discusuion we can usually work out which one suits the student best and then get them using that one.
Horses for Courses chaps!
Arm yourselves with the full gamut, throw away any prejudices you have about a particular method and be prepared to teach them all.
JHC