Vowles noted that the delayed delivery of the components required extended garage hours to ensure safe deployment.
"We wanted to take that, but it only really appeared at 3pm on Thursday, and we had a tremendous amount of work to do.
So I wanted to make sure the cars are properly prepared," said Vowles.
The Williams chief also detailed why Alex Albon swapped to a different FW48 chassis after experiencing setup issues during recent events.
"There's nothing wrong with the original chassis, but what we wanted to do after Barcelona is specifically capture that and do a series of tests back at the factory," said Vowles.
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He minimized concerns regarding any underlying structural flaws in the discarded monocoque, highlighting modern design strengths.
"As a result of that, basically changing chassis is one of the easiest ways of doing it from an operational perspective.
It's also something that we're used to doing for a number of reasons as you move forward," said Vowles.
Vowles dismissed historic superstitions regarding unpredictable chassis performance variations that used to trouble teams.
"A long time ago there were ‘ghosts’ in chassis. I don't think I've heard that for a long, long time.
The amount of force we put through it as a double-decker bus on top of it, so I assure you they don't move anymore," said Vowles.
The engineering team concentrated on resolving handling asymmetries that had compromised cornering performance.
