This does cause confusion, but the reason for advertising the trains as Addlestone only at London Waterloo is because, although the trains go on to Weybridge, they go a longer, circular route, and take twice as long as the direct services via Surbiton. South West Trains passengers intending to travel to Weybridge are best served by the Weybridge via Surbiton service for a quicker journey.
Peter Brooks, Timetable Development Manager