(7 hours ago)Storx wrote That X6 didn't exist with the X4/X5.
The original X6, was a variant of the X5 in Blyth they used to do different routes in Cowpen. Then it was the now 354 but via South Gosforth when they had their complete moment of madness where the X4 went via Gosforth and the X5 went via the Freeman which was very quickly changed into the 52/54 as it was extremely unpopular - as an understatement.
Can't confirm but something in the back of my head says it's because they didn't want the MAX/Sapphire routes to duplicate in numbers and the X4 already existed in East Cleveland though.
Ahhh yes i vaguely remember that, when it was the X6/X6A which was basically a mashup of the 56(356)/355, only lasted about a year, then the 53A/X6/X6A/X8/X9 were withdrawn which is when we got the 51/52, a rerouted 53, 54
It think the 57/57A were swapped at the same time