Ferrari has in fact not decided whether to keep using its new full F-duct system for the remainder of the Spanish grand prix weekend.

Ferrari has in fact not decided whether to keep using its new full F-duct system for the remainder of the Spanish grand prix weekend.

It has been reported that, after a shakedown at Vairano in Giancarlo Fisichella's hands and tests on the race cars at Barcelona on Friday, the downforce-spoiling system will stay on the F10 for qualifying and the race in Spain.

But Fernando Alonso, quicker than Massa throughout Friday and fourth fastest in the afternoon session, said a final decision will only be taken "this evening".

"The system worked well but obviously, despite the fact we have tested it on various occasions, we still lack a bit of experience before we can get the best out of it," he added.

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