Pantload, thank you for your detailed explanation, I would like to further inquire your thoughts reference to the non GPS aircraft operated in Class 1 airspace, we regularly operate four sector days, you are advocating doing a full align for the first flight and doing nothing after that? I will try this method but suspect your theory about the FM position being more accurate than the ARP would be surprising. My world is operating with cadet button pushers that enjoy playing with the aircraft as much as possible, don't get me started on the VS knob, but with the amount of time between the turns I dissuade all FO's from trying to input the gate coordinates, anyone that knows the aircraft well knows that the potential for a large error is opened as soon as you start inputing Lat / Longs and that "High Accuracy" means nothing.