Dear Dovetail Games, I have been playing your game for quite a while now and it is great fun. I especially enjoy the GWR Route. So I was wondering, could a Metropolitan Line be possible? I looked at maps and everything and you could make a line from Aldgate to Watford or Baker Street to Watford and then you can also take a train to Uxbridge. Other possibilities would be adding both a Metropolitan and a Jubilee line and you can change between them. I just looked it up and I think it would be possible. I mean it was just a thought. I would love to see the Tube in TSW. Maybe you can think about it.
I'm a huge advocate for putting the Tube and the Met is my no.1 choice if it ever comes. No Amersham or Chesham though? You could put those two in and even add the remaining bits of the Chiltern route to Marylebone and Alyesbury which is shared with the Metropolitan Line between Amersham and Harrow.