(16 Feb 2015, 12:13 am)passenger_10 wrote No. Way back in the days when the 505 and 501 both ran to Berwick they swapped over at Berwick, but since X15 and X18 were introduced they don't.
Did they run behind each other when they ran as those? I remember being on 7507 on whichever the quick one was (505?) and we followed 7410 from about Belford, it arrived in Berwick a few minutes ahead of us. However it didn't leave straight away, surely meaning it wasn't late?