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Daniel Ricciardo enjoyed a 'good' start to his weekend in practice for the Canadian Grand Prix.
Ricciardo was tenth fastest in the second of Friday's 90 minute sessions.
"We seemed to be where we should in the midfield and I was pleased with the way the car went straight out of the box, so that’s always good when you don’t have the feeling you are going to need to create a whole new race car to be on the pace," he said.
"In the dry in the afternoon, after my first couple of runs on the prototype and the Prime, I felt we could get more out of the car, so we made a fairly big change which I think worked in our favour. I was quite pleased with my Option run but we still have some work to do, as there is more to come. Overall, a good Friday, a good start to the weekend."
Team-mate Jean-Eric Vergne was fifteenth fastest and conceded that he is not pleased with the behaviour of the STR8.
"I was not so happy with the way my car was behaving, so we need to look at the data now and fix it," he said.
