Have we got an error here? We have Leighton Buzzard then Berkhamsted (this seems fine as there is a fast train between these not stopping stations), but then we have Cheddington (LNWR map suggests that all trains from Berkhamsted to Cheddington call at Tring. This may not be the case, it is just the way the dots and lines diagram on route map makes it appear. I am busy for coming hours. It's up to senior members/adjudicators to decide. Just thought I'd flag this in case people agree there's an error.