Hello, Firstly, does anyone know why the Northern line platform at Euston, southbound on the Bank branch, is so big? I go through it and often wonder why! Secondly, just got off the train at Wembley Park and walking along the road, I looked out over the bridge like normal, and saw a half set come off platform 6, and onto the depot lines. However it did not have a red end on the rear. I thought as half sets (unless red at both ends, I.e. an ex- Chesham shuttle/ East London line set) they could only be used inside the depot. Any ideas would be helpful! Thanks!