On Sunday, 20 November 2016 13:32:49 UTC, Robin wrote:
*But* they appear to share the ticket system with rUK (eg offering
collection from ticket machines outside Scotland).

There are only two retail web ticketing systems in the UK - WebTIS and Trainline. Train operators use one or the other (and the Trainline.co.uk obviously use their own, but with added charges).

Owain