I can't really think of a downside, people used to say 'well if you fly freight it's all night flying'
90% of my flying is either in the dark or it's dark at home base so 'so what ?
I would be quite happy to fix myself something to eat / drink than have to deal
with these fat old bitter dragons we have on the western side of the pond, plus I could go back to whiz without having to interact with them.
No passenger issues ?
Bring on the Lithium batteries, I'll take my chances
