In message , at
07:41:09 on Fri, 30 Sep 2005, Brimstone
remarked:
How will they teleport them between the two lines?

Perhaps with a smidgin of enterprise?

Craning them out one car at a time, then transporting them by road to
wherever the nearest Central line depot is; then doing the reverse five
months later really doesn't seem worth while. Especially given that the
specification and modification level of the cars on the two lines has
diverged over the years - so they probably wouldn't work anyway.
--
Roland Perry