As predicted the GBRf duo were indeed reversing into Wellingborough GBRf yard when i arrived from Harrowden. The black skies persisted as a slick shunting operation was put into practice. The MLA's were dropped off alongside the 20's in the sidings followed by a procession of manoeuvrers of various wagons as seen here. GBRf Metronet example 66719 'Metroland' then uncoupled from 66707 'Sir Sam Fay - Great Central Railway' and was switched off while 66707 continued to shunt the wagons further into the sidings before also being shut down. In the hour spent watching the sun seemed to only appear when the loco's were well into the yard, but a couple of opportunities did present themselves after a little perseverance and the odd hail shower!
The MLA consist was 503030, 503029, 503057, 503052, 503053 and finally 503024.