You could make it look right by
distorting the lines to have them both running through north-south, but
after all the fuss we've had about layout, that seems silly.

Oh, come on - what haven't I done with that map already? ;-)
I will bend Victoria as you described.


Camden Town's not cross-platform?

Is it?
I thought it has two close, but separate "sub-stations"?


What's wrong with just
letting the confluence of lines in one circle show cross-platformity?

It will look too similar to same track usage in many cases (check
Chiswick Park or Wembley Park on my map).


I'm intrigued by Alex's choice to represent Edgware Road as two
unconnected circles with a single name.

Well, that's because I was clueless to their "official" status. I will
name them both now.


Would it make sense to show the Shepherd's Bush stations
this way too?

In the light of the new facts - no.