Running at 40mph, 37901 Mirrlees Pioneer passes Whitehill (Between Combe and Finstock) in miserable light on 10 December 2024 with the 5Q99 06:27 Wimbledon Park Carriage Sidings Depot to Long Marston stock move, taking South Western Railway EMU 458531 for storage. 37510 Orion is bringing up the rear.