31308, 31271 & 31514 approach Banbury on 10 August 1996 with the 33111 Charters 1Z63 06:44 Preston to Kensington Olympia 'Multiple Marauder' railtour. With plenty of power available, this ensemble nearly reached the magic 100mph in the Thames Valley, but unfortunately 31514 then decided to thrown in the towel, and afterwards became a dead weight until the loco change at Kensington Olympia, which saw three Class 33s take over for the 1Z20 12:10 Kensington Olympia to Kensington Olympia (via Cambridge, Ipswich and Chelmsford).