Great report Fraser - as I said in one of my very first trip reports when I joined FT - you are in inspiration to us all with your trip reports - certainly set the benchmark for others to follow!
A few points:
1 - I wonder who those "friends of yours" in the Concorde room were who left the note?
2 - I can beat your 90minutes passing through CPT - how about 2 hours with the power on?
(I can't say where as that would give the game away for point 1
)
Excellent stuff.