Michael Schumacher has downplayed the impact on Mercedes' controversial W-duct wing on a day when the German topped the timesheets in practice.
Despite a formal protest from Lotus F1 on Thursday, Mercedes were permitted to run their DRS-activated W-duct wing at the Shanghai circuit after the FIA rejected the protest.
According to motorsport's governing body, the device, which which stalls the front and rear wings for added straight-line speed, is not driver activated and is consistent with the intent of the regulations.
"It certainly should quieten down some people who like speculation," Said Schumacher. "It is a good innovation and I think it should be honoured by everyone.
"If you have an innovation, people should simply accept that. Mercedes has done a good job on this one, although it's been overestimated, the worth of it, but it's good.
"We put it on because it gives us some time."
And that's exactly what it did around the Shanghai circuit in Friday's second practice.
Schumacher topped the timesheets with a 1:35.973, which put him 0.172s up on Lewis Hamilton while his Mercedes team-mate Nico Rosberg was P5.
"General it's been okay, a trouble-free day considering we got rain this morning," said the seven-time World Champ.
"The car handles definitely much better than we experienced the last two years here. If you have a balanced car here it makes a lot of contribution to lap time, and definitely that is the case."
The German, though, conceded that Mercedes are "not yet where we want to be in terms of pace.
"We have got a lot stronger as a team over the last two years in making the pre-analysis and getting the car right, but you know we are on a Friday, not on a Sunday afternoon."
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