dk1
Veteran Member
The Newcastle-Reading services operate via Doncaster.I can see why it would be a long trip that might make it undesirable, but I can't see what would make it impossible to go Leeds - Selby - Hull - Selby - York.
It's one of those places that really ought to be on the XC network, but I guess you'd need to figure out what to get rid of in order to do so.