All you ego fluffers need to grow up.
Descent at ECON? If the manufacturer says so, they'd probably know.
If it saves a valuable finite resource, i'll happily do it.
If it saves money, bonus. (literally, but not for me unfortunately)
250k/5000 and 210K/3000?. They also ask me to turn up on time, pass Sims, get a medical, wear my uniform straight and be nice to the guy next to me. Oh and get the machine from A to B in the manner they require.
Last pay slip I looked at reminded me I am paid pretty well to do as I am asked (or told).
If you need to desend at .80 to prove yourself, you probably shouldn't be flying people around in a jet yet.
Finally, .80/320 is actually slow for a jumbo, so keep yourself in perspective.
How is it any harder than this?