I believe the rules state that the driver has to have manual control of the clutch. Therefore if he pulls it back a bit the clutch will slip more. Therefore the driver is not locked into a pre-defined clutch motion - that would be launch control, which isn't legal. So the driver retains control, even if it is tightly scripted and well setup control.
You or I wouldn't be able to do much with them. But the difference between a really REALLY REALLY good driver (Webber) and a so stunningly good driver that people will talk about him like people talk about Fangio (even if they don't like him now, or his winning ways, and with the addition that it's a safer age with more computers) like Vettel (or Schumi, who was also amazing at starts) is that sort of tiny margin of feel.
Hard to believe. But that's because most people think that driving an F1 car is either really easy ("a monkey could win in a Red Bull") or virtually impossible ("No way can a driver with a manual clutch possibly have any control over the slip of the clutch against speed, torque and revs").
You or I wouldn't be able to do much with them. But the difference between a really REALLY REALLY good driver (Webber) and a so stunningly good driver that people will talk about him like people talk about Fangio (even if they don't like him now, or his winning ways, and with the addition that it's a safer age with more computers) like Vettel (or Schumi, who was also amazing at starts) is that sort of tiny margin of feel.
Hard to believe. But that's because most people think that driving an F1 car is either really easy ("a monkey could win in a Red Bull") or virtually impossible ("No way can a driver with a manual clutch possibly have any control over the slip of the clutch against speed, torque and revs").