When the 2019 aerodynamic changes for next year's Formula 1 technical regulations were fast-tracked through the FIA system just before the April 30 deadline, it was a rare example of time constraints focusing everyone's attention.
A laudable desire to boost overtaking by enabling cars to follow each other more closely meant the governing body, F1 and the teams worked together - first to test the theory, and then to get it voted into the regulations. Not all the teams were convinced, but unanimity was not required.
Seven months later, the fine detail is finally being agreed by the teams and the FIA, an indication of just how complicated such changes invariably are. But there are doubts about how significant an impact there really will be on overtaking in 2019, despite all that effort and expense.