The Final Fix chip: a swap after qualifying
Final Fix allows one swap in the lineup after qualifying and before the race deadline. It is the only chip played once part of the round is already known.
Every other chip is declared blind, before the lineup locks. Final Fix is not: you see the starting grid and only then decide who to change.
That makes it the most reliable chip in the set and, at the same time, the most modest in ceiling. One swap does not rebuild a lineup, but it almost never goes to waste: a bad qualifying happens at every round.
The typical case is your expensive driver being knocked out in the first qualifying segment and starting deep in the field. The race is close to lost for them and the qualifying points are gone; the swap puts the round back in play.
The second case is the reverse: a cheap driver unexpectedly qualifies near the front, and you make room for them before everyone else does.
One timing constraint matters: the window between the end of qualifying and the race deadline is short, and on a sprint weekend the running order of sessions is different. Plan the swap before the window opens, not inside it.
The other chips
Common questions
How many swaps does Final Fix give?
One, between the end of qualifying and the race deadline.
Do the qualifying points of the replaced driver stay?
No — qualifying is scored for whoever is in the lineup at the race deadline.