I remember back in the Virgin days the 0526 was the earliest Liverpool service due to arrive at 0803, and after that I think it was straight to the 0707. Meanwhile from Liverpool you had the 0526, followed by the 0605, then the 0700, before finally reaching normal timetable hours at 0747. Today there is no Liverpool to London via Birmingham despite there being one in the opposite direction, so evidently the demand is more Liverpool-London than vice versa. It's certainly among the quietest of the main InterCity West Coast routes.