In message , at 21:41:05 on Mon, 1 Jun 2015,
Mizter T remarked:
You might manage it by "stepping back", but the discussion has revealed
the reversal is more likely to be at Abbey Wood.

?

Abbey Wood is the end of the line. (Well, the Crossrail branch.)

Yes, so reversing the HEx2023 there will be easy.
--
Roland Perry