37410 Aluminium 100 passes Ardlui with the Hertfordshire Railtours Dumbarton Central to Dalmally 'Easter West Highlander' ECS on 11 April 2004. It would pick up the tour passengers (who had been on a coach trip) from Dalmally, before returning to Dumbarton. Luckily, in view of the mileage required to get to Scotland, there were three Class 37 hauled railtours operating over the West Highland line during this weekend.