I went up the night before on a train, stayed in a Premier Inn near the start which meant near enough 24 hours travel for nineteen and a half minutes of riding. Was worth it though.
So I'm keen to go sub 20 but I'm confident I can do that on a variety of courses within and hour of home, if I think the v might get me sub 19 then I might make the trip!
5 hours of driving for 52 minutes of cycling on Sunday was enough for me to know that I wont be riding the V718 any time soon!