Jenson Button has said he would prefer it to be dry for Sunday's F1 2011 Belgian Grand Prix, although he is adamant McLaren will be strong and right at the forefront come rain or shine.

Button enjoyed a very positive first day at Spa-Francorchamps, setting the quickest wet time in opening practice and finishing third on the timesheets. He was also third quickest in the afternoon session too, which was again rain affected and while dry running was limited, he added that they still made 'reasonable progress' with the Mercedes-powered MP4-26.

Indeed he reckons the Woking-based outfit is 'definitely in good shape' ahead of the twelfth round in the F1 2011 World Championship.

"Despite the changeable weather, I think we learnt quite a bit today," Button said. "We didn't get quite as many laps' running in the dry as we'd have liked, but we still made some reasonable progress.

"I tried a couple of different rear-wing combinations today - and each had their positives and negatives.

"The wet weather didn't make it easy to draw many meaningful comparisons, and it'll be a bit of a challenge to decide which way to take the car's set-up direction, but I'm sure we'll get there.

"Speaking personally, I think it might have been more fun to race with DRS through Eau Rouge - but on the other hand I suppose you'd have to say that, on balance, the FIA has made the right choice: you lose so much downforce by activating the DRS that it's safer to keep it closed through the corner.

"I'd definitely prefer it to be dry on Sunday. I reckon we'd still do a very good job in the wet, but I think we're looking very strong in the dry.

"The Red Bulls are very strong in the middle sector too, but we're definitely in good shape overall."