knapp gate wrote:

Green Park is a good place to change from Picc to Vic or the other way
round, especially if you have luggage. BUT you must ignore the signs!
Go to the way out, go up the escalator to the ticket hall and then down
to the other line. I do this for trips to Heathrow from Euston. Can get
from Euston main line to departures at Heathrow without having to
negotiate any staircases

Top move. Travel in the rear part of the Picc Line train, change at
Green Park, follow the Way Out signs up the escalators to the
circulaying area, then down the escalators to the Victoria. Saves a
long walk at Green Park!