What we need is less grip not more grip. If the speed of the car exceeds the available grip it puts a premium on driving skill and you don't get the farcical situation we have today when an average competent driver can set pole and win a race ahead of drivers of significantly greater ability. Although possibly past his best, I don't believe Schumacher is as much slower as his qualifying andrace results suggest. The downside is that the racing is more predictable and not so close but this is balanced by the greater spectacle.