I use the Platform 5 UK Metro and Light Rail Systems publication for train formations, but I've seen some sets which differ from the formations given there. Specifically, 51525 is paired with 51717 (instead of 51705), 51609 is paired with 51705 (instead of 51717), and 51556 is paired with 51531 (instead of 51557). Is 51557 paired with 51530, and are there any other changed pairings?
Just an observation, Northern Line trains seem to me to be particularly filthy - do they ever get washed?
Just an observation, Northern Line trains seem to me to be particularly filthy - do they ever get washed?