Just popping in to confirm that we've had a discussion as a staff team and we'll be letting this thread continue

(The previous thread was getting a bit unwieldy so we'll let this new one run rather than reopen the old one though

) - note this is a specific exception for the Cally Sleeper as it's so interesting operationally, it's not a general relaxation on our policy regarding master threads.
Also, please note that any discussion relating to the Mark 5s themselves should be put in the appropriate thread within Traction and Rolling Stock, not here. (I'm on mobile, will come back and edit this post tomorrow with the appropriate link if I remember

)