20313, 20315 & 20314 approach the level crossing at Knodishall Green (on the Leiston branch) with the Pathfinder Tours 'Twenty Twenty Vision' railtour on 10 March 2007, now running as 1Z21 Ipswich to Cambridge via Leiston. 47501 had been attached to the rear of the train at Ipswich, and was now on the rear of the train. Unfortunately by this time the weather had deteriorated, but it started to brighten up a little as the 20s returned from Leiston, only for the sun to come out a few minutes later! The branch is normally only used by nuclear flasks trains, appropriately hauled by these very locos.