Andrea Stella explains the key to Mclaren's consistent development through upgrades:
https://www.f1technical.net/news/27626
"There's not much in Formula 1 fundamental for success that is a magic bullet. It's really the result of working on the fundamentals.
"The fundamentals don't only involve the capacity to generate ideas, to create the next geometry for a floor or a front wing, but they also involve understanding the methodologies you use for this development and understanding when these methodologies will be not only effective in being innovative but also in giving you the confidence that what you have achieved in development in the wind tunnel or CFD will actually transfer into something that works trackside.
Maybe some lessons for Aston Martin in that.