Some interesting workings today with Slatyford operating some of Walkergate's routes, and vice versa - including Busways liveried 10646 out on the 40s.  Am sure tehre will be logic to it but not sure why if both depots were open they were cross covering work (and appears to be full boards e.g. 10646 on Byker runs all day, 11780 on Slatyford runs all day and plenty of other examples too)