I did that Sportive last year, really enjoyed it. Watch out for the 25% hill, it literally pops out of nowhere and last year they had a photographer at the top. Remember to try and smile!
In the end we didn't actually follow that route exactly, but I remember that climb well. Messy and very nearly beyond me! Luckily my friend had some problem with my bike so i just had to stop and wait for him!
Very impressive, although i would have loved to see you when your cadence got up to 137!
I've just had a weekend cycling in the cotswolds, did this yesterday:
A ride mapped on 04/03/2011 in Moreton-in-Marsh, United Kingdom | Bike Map | MapMyRIDE
which for a fairly amateur rider like me was...