Ferrari thinks Formula 1's Saudi Arabian Grand Prix will offer it a key test on just how much progress it has made in solving its early-season wobbles.
It has had a challenging start to the campaign, where it has struggled to get its SF-25 into the right operating window through a range of corners and ride heights.
Of particular concern has been the need to lift the car higher than is ideal at times because it has been prone to bottoming out, which risks it wearing its plank down.
This triggered Lewis Hamilton's exclusion from the Chinese Grand Prix when too much of his plank had been worn away.
The problem is especially exposed at tracks with high-speed corners, where teams need to be aggressive with ride height because that is where the most downforce is found.
A new floor that Ferrari introduced at the Bahrain Grand Prix was aimed at solving some of its core issues and allowing it to run the car in a better operating window.
The early conclusion was positive: the upgrade correlated well with the windtunnel and appeared to have helped Ferrari shake off some of the SF-25's worst vices, as both Charles Leclerc and Hamilton were left much happier with things.
But because the true benefits of the floor are only really likely to be seen at a proper high-speed track where there is more aerodynamic load on the car, it is this weekend's race at Jeddah that will act as a better litmus test of its progress.
Leclerc has readily admitted that the Saudi Arabian GP weekend will not only give it some answers on the job it has done but, if it works as hoped, it should help deliver a step up in speed too.
Asked if the floor would have more of an impact in Saudi than it did in Bahrain, Leclerc said: "It should. I think for the layout of the track, we should be doing a bit more of a step forward than we did in Bahrain, which is a positive.
"But we obviously still have to confirm that. I think the numbers we were expecting from this upgrade in Bahrain were the ones that we saw. Considering that is the case, we'll benefit a bit more at a track like this."
While the performance of the car through different speed ranges has been the main area of focus, Leclerc did not view that as the primary gain with the new floor.
"I think overall grip has been a big improvement and in specific corner phases which we should gain more from on a track like this," he said when asked by The Race to go into the details of where the floor has helped improve the car.
"In terms of through-corner balance I don't think it was a very significant change."
Leclerc has been trying to overcome some of the deficits of the SF-25 with a more extreme set-up in recent races.
And while he said he thinks he has nailed a solution that allows him to get the most out of the car, he accepted that he has hit a ceiling of what is possible and now requires further car upgrades to get closer to the front.
Ferrari's estimate put it at a similar pace to Mercedes, around two to three tenths of a second behind McLaren, with Red Bull's inconsistent form making it unclear what its true potential is.
The new floor has put Hamilton in a much happier place with the car too, especially compared to where he was in Japan.
He was especially encouraged by a strong second stint in Bahrain where some revisions to his driving style delivered some good gains.
He said the key now is building on this new approach and not returning to habits he has picked up in the past.
"It was a real positive to have had that stint, and had that experience with the car," said the seven-time champion.
"There are some changes that I made in my driving style during the race, and so now it’s replicating that, [I'm] putting that every time I go out in the car.
"It's easy to automatically go back to your old driving style. So that's something I need to make sure I continue to practice. But I feel positive about it."
