Have you ever driven any racing simulator?
Go and try. There are plenty of them with great physics - rFactor, LFS. Driving properly through high-speed corner is the hardest thing to do in open-wheels. You must be very good technically, and entering properly high-speed corner is very tough (because in high speed every inch out of the proper racing line will cost you darely in later phases of making the corner), then you need to carry the speed and make good exit.
Making slow speed corners is much easier. You just need to find braking point, which is million times easier than making good entry to high-speed corner. And in slow speed even if you miss slighty racing line it won't cost you that much as the slow-speed corners are much shorter - so you're losing time in shorter distance.
It's simple logic and every racing driver will tell you that high-speed corners seperate men from boys. That's why Eau Rouge is considered such a great challange for drivers.
Also have in mind that Silverstone, Spa and Suzuka all are considered as real drivers' circuit - every of this track is most about high-speed corners, coincidence?
QUOTE (craftverk @ Aug 29 2009, 21:28)

How does that work? You don't honestly think that Fisichella or Sutil are better than Alonso and Hamilton do you as both Force India drivers beat them both in the middle sector... Downforce and aero balance is everything in F1 when it comes to circuits like Spa... it's not like Moto GP where there is only mechanical grip.
No, Force India is simply much better car in high-speed corners, driver's input isn't enough to overcome it. But it doesn't change the fact that high-speed corners are leveler. I'm pretty sure there are drivers who would go in S2 much faster than Fisichella in that FI car.