I think there may be a perception problem about the feasability of tandems on trains - out with friends* last night (another one of us is now officially old) they seemed confused by our transport logistics and that is had involved a train whilst wielding a tandem.
Possibly more so as the train in question doesn't have cycle facilities of any description.
So once again, First Great Western get classed as blasé as us about taking a tandem on trains - just pitch up and don't understand why anyone would fuss about it. Yet the small sample of public were rather taken aback.
*For the record we weren't the only ones who arrived with bike, though to him it was just have a short ride from home.