Woburn - rough surfaces
Yep, Woburn was quite rough - but I reckon Barton's 09 is currently worse. As I taxied out a week ago today, approaching the holding area the bumps were just the wrong distance apart for the Chippy. Even at walking speed they hit a certain frequency where the whole aeroplane was bouncing bodily up and down in the level attitude - very uncomfortable for the 'larger gentleman', and my helmet banging on the canopy structure didn't help!
On takeoff, as Haireyplane says of Woburn, one gets launched by a big bump before take off speed is fully acheived. The Chippy is actually quite forgiving of 'back of the drag curve' take offs provide you don't attempt to climb away until a safe speed is achieved.
However, if the 'launch' is way too early, holding it in the air while the speed builds can use up precious runway - it's better to let it land again after the bump and accept a launch off a later one - when speed may be a tad higher.
SSD