(14 Jul 2019, 8:24 pm)Jimmi wrote IIRC, the VDL Gemini's transferred to Yorkshire to in turn upgrade service X15 to have younger buses whilst at the same time it was decided to downgrade to some extents the X12 to pretty much full Pulsar operation as the decker capacity was no longer really required with the loss of student traffic between Uni campuses in Durham and Teesside as it's all in Durham now in return Jesmond got the ex London MAX Volvo B7TLs displaced from Ashington, think even before this there was at least one decker turn on the 306 for some reason.
I believe the X12 still has one or two Double Deckers allocated...