Although as a McLaren fan I think Badoer is great

The interesting thing about his runs is that McLaren is running a bigger rear wing than you’d expect at Spa. Surely, this indicates that they’re still a bit behind on rear downforce, and running such a wing would be expected to slow the car down during the flat-out portions of the circuit where drag needs to be minimized. But Hamilton set his quickest sector times in Sector One- with the flat-out portion from La Source through Eau Rouge into Les Combes- and in Sector Three, with again a long flat-out portion ending with the Bus Stop. He (as well as Raikkonen in the Ferrari) was losing time in Sector Two, which features mainly medium-speed, 3rd to 5th gear corners where you would expect the extra downforce from the big rear wing to make a difference.

Just giving it a glance, it looks to me like KERS is actually making a difference for both McLaren and Ferrari in the flat-out portions and holding it back with the weight distribution short-comings in sector two. This is the story of the year, but it’s a bit surprising that KERS is making this big of a difference considering what Whitmarsh and others have said that they would struggle with charging the battery due to the fact there are only really two hard-braking portions (La Source and Bus Stop).