Toro Rosso's head of vehicle performance Laurent Mekies endorsed his drivers' positive comments on the state of the car heading into the fifth round of the 2013 championship this weekend in Spain.
"So far, we seem to be working in the right direction, making steady progress and we got through everything with an essentially trouble free day," he marvelled. "I feel we found the right compromise between checking the new components and running a good preparation programme for the race.
"The rain this morning didn't help, but of course it's the same for everyone and anyway, it was useful to get a feel for the car in these conditions," he added. "It was a very busy day for us, because we had quite a lot of new parts to evaluate, mainly on the aero side. We distributed the test elements across the two cars."
But the team knows all too well that an upbeat Friday session assures absolutely nothing when it comes to qualifying and the race itself, when everything could change and nothing could be taken for granted.
"It's going to be very tight with the rest of our nearest competitors, with four or five teams within the same two or three tenths," Mekies said. "Hopefully we can be at the front end of that group tomorrow."