Question about Meal Service in J

[eriond]

Am I right to say that in JCL, whether or not the meal service begins on trays (laying of cutlery, glasses, etc.) is solely dependent on aircraft type? I understand the FAs do not conduct the meal service with trays on all A380 and B77W operated routes. However, does the meal service on all other aircraft (New/Old Regional J or SpaceBeds) make use of trays regardless of the route and length of flight?

On routes that operate both the long-haul and regional configurations (e.g. PEK, PVG, SYD), can I assume that there is no difference in the meal service apart from the absence of trays on aircraft featuring the long-haul seats?

Thanks!

[B727]

Beverage service in JCL on the 77W and 380 for sure has its own glassware which includes that unattractive thing they pour the champagne into which I call a "flumber" (flute + tumbler mutation)

[9V-JKL]

Not exactly. Tray service is on all SIN-HKG routes due to flight timing.