Mizter T wrote:

Dave - as an aside, do you have any definitive info on when PrePay is
coming to National Rail?

I'd also be interested to know if there's a firm answer - I thought it
was one of Ken's "nice to have" ideas rather than anything definite. I
don't think any stations in South London have validators yet (other
than the few which are barriered or have direct connection to a Tube)
so it would be quite a big job. And will one or two validators per
platform/station really be enough at busy stations like Herne Hill?