I see . I remember taking the 336 to Birmingham from Glasgow.336 was the night Plymouth to Scotland 532 for a while was a well used Plymouth to Scotland day service unfortunately Bristol needed a highly regular link to Blackpool so that changed
As for the Bournemouth to Glasgow, I don't think Stratford upon Avon is currently served by National express. A south coast to Scotland service would be quite useful with it running limited stop north of Birmingham.