Engineering works look brilliant for just before the Christmas holiday period, horrendous after that as the Northern Line is closed between 26 and 30 December between High Barnet/MHE and Camden Town - meaning Tufnell Park and Woodside Park would be out.
My nomination for the date is anything between Thursday 15 to Saturday 24 - NO ENGINEERING WORKS THAT DAY



Doesn't mean I'm definitely attending though.
Sidenote: Journey Planner is awful at running times - I just ran Kenton to Northwick Park in 2:31!
(I finish school at 12:35 on Wednesday 14)