how do you know that beamer? Have you flown with them all and seen the evidence with your own eyes or are you assuming based on anecdotal evidance that your assumption is correct?
There is some tosh that gets posted on this site but that takes the biscuit.
I saw the Cessna involved in the crash on our way to lunch at WW. I have GPS in fact 2 of them and still manage to look out the window.
Perhaps another "fact" is that to many pilots spend to much time with there head in the cockpit looking at a map and stopwatch and trying to work out where the hell they are.........