I hear the 04.30 takeoffs, & the 05.30 & 06.30's. The thought of having to get out of bed at 04.00 - now aged 65 - for either Day 1 or Day 5 earlies, or anything in-between, is a horrific nightmare. The idea of a 22.00 departure for a 10hr night flight, 2 pilots, with 6-8 hour time change; 2 days off in an airport hotel, then return still knackered is also not high on the list of '10 best things to do before you die'.