agricola
a genuine importer of owls
Slightly biased , but with long distance travel on the WCML growing in spades, and there is one "spare" slot /path per hour to serve Manchester, Liverpool, Scotland and the West Midlands - I dont see much option.
And no point in trying to add another pair of tracks onto the existing line - that woud be even more disruptive.
Would reopening the GCR do much to alleviate things?