B767,A340,A330,A300 and occasionally the B777 are always getting in the way of 747s.
The same problems happen every day. A B767 (M.78) in the lead followed by a A340 (M.82) then a B777 (M.84) then a B744 (M.86). My question is:- Is any thought given to enroute separation requirements when scheduling. Pilots often complain when they can't get their level but if they left 10mins earlier or later it may relieve the problems most of the time?