Thx for info Fred, concerning OE-LAX.
Saw a couple of times the SIA A340-500 cruising E, has perhaps something to do with the position of the jetstream.
I even made a photo of this Airbus on October 20 2005, also 9V-SGA en route EWR-SIA.
In general I dislike pictures with opposite light, so do not make lots of efforts picturing the planes cruising towards the East, unless the contrail self or airplane is of interest.
The best shots are with backlight and in my area they are planes cruising to the WNW.
Especially with the Emirates, practise is possible as more than a dozen are passing.
How close can U get? Perhaps this close, taken on January 8 around 1200LT.
A few minutes earlier a Cargolux with a contrail is special to me as usually to low to see damp.
