Er..... I'd be surprised if that went hourly. I doubt
FGW▸ would be pleased
That's what I thought - but that is the sort of stupid thing someone would agree to !
This route could certainly do with an additional train out of Waterloo, there is a huge gap between the 1220 and the 1920 departures, especially as the cheap advance fares are mainly available on the through trains. Mind you I did notice that there is one cheap single available from Waterloo to Warminster: dep at 1959. Route is Waterloo - Paddington - Westbury- Warminster !!