It will be interesting to see where these end up. Logical decision for 7522 (already there), 7524-25, 7529-33 and 7553-56 would be 43/44/45 with 7526-28 as Ashington's spares. But as others have said, could be a mix of singles and doubles on the 43/44/45.

If the 306 does move to Blyth depot though, would there be a likelihood of an actual order for both the 306 & 308 given they'd likely interwork? Rather than historically where the 306 has used older vehicles or single deckers.