Originally Posted by
Vessbot
Overall: If the handflying task is offloaded every time, then there's no chance to practice it to where its share of the mental capacity is reduced, like every practiced activity does. So, any time performed, (including when suddenly forced to under unfavorable circumstances) it continues taking its large share of mental capacity, leaving little for SA; and this picture never changes. So, over this scale, APFD reduces SA.
Point understood but you really cannot spell it that way. The aggegate safety-levels are increased by use of APFD.
If on a given Friday all of them went DDG/MEL, that day the safety margins would be significantly less compared to the rawdata days as the un-proficient handflying would take much greater mental resoures than it used to (should?). No dispuite.