Michelin...what's their game?

[drexel]

During the race it was suggested by the commentators that

1. Ralf's first set of tyres were apparently 10-15 laps old before they were put on.
2. It takes about 10 laps to hit the sweet spot for the tyres.
3. Earlier in the year there was concern that Michelin tyres were turning into slicks.
4. The grooves on Ralf's car were not as apparent as Michael's near the end of the first stint.

After the race in an interview with Ross Brawn.
He was confident after the first pit stop that the williams would not be as good because their next two sets of tyres wern't as well prepared as their first.

My question is why are the Michelins at their peak when they're almost 30 laps old!?!?

[Nicholas]

Anyway Bridgestone aren't doing the greatest job. JV blamed the tyres for his slow weekend.