(28 Jul 2015, 8:00 pm)tyresmoke wrote What I meant was the regionwide+X10 ticket would have been before the X9 existed.
Coaches haven't operated X10 for at least as long as I can remember, though maybe in the early years when it was a shared Northern/United service? The pink Premieres/Paragons were the early days of the X9
Coaches were used on the X10 when it was jointly operated with United along with the X1 (at the time), when Chester ran it.
The duty was something like X1 from Chester to Newcastle, X10 to Middlesboro and back to Newcastle, then X1 back to Chester.