"This was a useful day for us, even though the track surface was pretty  dirty after all that rain," said Marlboro Yamaha Team manager Geoff Crust. "Carlos tested some new suspension parts, while Max wanted to evaluate some different chassis settings which the weekend's weather prevented him from trying. Both of them seem pretty satisfied with progress."

Biaggi, who finished Sunday's race in sixth place, worked at further improving the new chassis he received at last month's Czech GP. "The new chassis is better but we had some trouble with set-up over the weekend, so I wanted to try a few different directions with settings," said the Italian, currently third in the MotoGP World Championship. "We have definitely improved the balance of the bike today, and our findings should be a big help in case we run into any set-up difficulties at the last few races."

Checa, who started Sunday's race from pole and finished a brilliant second, was impressed with the parts he tried. "We learned plenty today, although these parts won't be used for a while," said the Spaniard who holds fourth in the title chase. "The bike worked really well over the weekend but we're always looking for improvements. I think we need to keep working in this direction and now I'm just looking forward to the last few races of 2002."