(16 Sep 2014, 7:27 am)mb134 wrote 7518 is on the X22 this morning, thought they would allocate a MAX E400 if they couldn't allocate a Sapphire? 

I suppose one could argue that this would allow the more 'prestigous' service to have the more 'prestigious' vehicles in the event that a Sapphire isn't available, but I'd personally argue that a vehicle missing on services X21/X22 should not impact on the quality of service for service X18. The only time I'd suggest this is acceptable is if the services were secured and the contract stipulated the use of a Euro 5 vehicle (and no Euro 5 vehicles were available - which is unlikely).

The liveries are different and this will be more noticeable when the vehicles are branded MAX, so I'd doubt they'd use the MAX vehicles as additional reserves.