Hi Chocco form the previous page! omigosh!
I too have an assesment booked for October 5th! 8.30 am. If you get this message- I hope you do, We should meet, travel in part way together and maybe have a coffee/Tea, help those pre- jitter nerves. It's always good to meet people. Well from what I read the assesment lasts till 12.30pm. So I would say, If your train leaves from Heathrow, book it for 1.30, that gives you an hour to get back as remember have to catch staff bus back. I am travelling to heathrow from the same tube line, where I live but at the other end of the line..lol
Gimme a shout or PM me. I have been to an airline interview a few times, virgin tho, so a bit different, but lets not even go into that right now, spk soon!