Though a bus swap occurred on the 6 on 02.10.2021 when an Optare OmniDekka spare in 901 replaced a Bridgford Bus bio-gas Scania in the form of 402, I wasn't able to capture the working, so here's one from the archives and it sees 901 on Stamford Road and Trevor Road on 31.03.2020 with a 6 to City Loop