And there in lies the dilemma. Both hand flying skills and automation skills need to be used regularly to remain proficient. When I started flying HUD I didn’t particularly like it. Fast forward several years and had to fly a night time leg with an MEL’d HUD. Wow, were my panel scanning skills rusty to say the least. Same with autothrottles, etc.. Finally came up with a policy that encouraged crews to hand fly when conditions permitted, i.e. not at the end of a 10 hour leg to a night approach in a foreign country on the backside of the clock. Let the automation be your friend under those conditions.