I travelled Oxford - Winchester return yesterday; easy on the way out but by the time I came back there were no direct services so did the usual Winchester-Basingstoke-Reading-Oxford shuffle. To avoid queues at Oxford I'd bought a cross-country mobile ticket (valid for Any Permitted route). The inspector on the first train, a SWT service to Waterloo was very reluctant to accept it, arguing that I should have printed a ticket (impossible if the app gives you a mobile ticket) or that it was valid only on crosscountry. He eventually let me get away with it - but was he right?