Suitably inspired by the Tour of Flanders, I thought I'd try a loop of all 13 climbs in the Hambledon valley, quite a few of which i hadn't done before.
Dudley Lane, Greys Lane and Parmoor Lane were particular toughies, needing 400W efforts in some parts on a 38/28 gear to make any progress, and I only just made it up Parmoor (#11). Missed out #12 as was running out of time, and was beginning to flake.
About 190W average, given all of the descents with ascents between 260 and 310W.
http://app.strava.com/activities/46937827... although looks like I turned too early on some of the segments.
Fun? session... one to repeat.