(18 Apr 2015, 7:43 pm)Dan wrote The PVR of the E1/E2/E6 is 16 and there are 18 ADL Enviro300s - 27723/24 are the unbranded spares.

Not particularly rare for unbranded spares to crop up on branded services but we tend to note these for the other operators so thought I'd note that one too.

To be honest in that case Dan. You would be better off reporting as rare any service other than the Es for these couple of vehicles to appear on. Even to appear on the X20 is rare. They are always on E routes