Cal sleeper is not stored and serviced at Carstairs. Its is stored and serviced at Polmadie depot near Glasgow Central. The Lowlander sleeper splits and joins at Carstairs, while the Highlander sleeper bypasses the station completely using the East to South curve.
Many thanks for clarifying that the Cal Sleeper is not stored and serviced at Carstairs. The point I intended to make in the video was that Carstairs is a marshalling point and the final boarding point (both sleeping car and overnight coach) in Scotland for the Lowland Caledonian Sleeper trains from Glasgow and Edinburgh to London Euston. Best Wishes, Stephen
