I have now done the 241 steps in Bracknell 5 times, but more importantly last time I did it twice in quick secession, 241 steps, lift (elevator) back down and straight back up.

So I will stop swimming until after the rush and hope I am OK.
Next weekend I am off to Denver for Altitude Training (hehe not really I am going to speak at a conference). The hotel has 38 floors, not sure how many steps that is but close to what I need I am sure.
So fancy sponsoring me http://www.sponsorme.co.uk/debralilley/shelter's-vertical-rush.aspx