The wind doesn’t pay you back
A headwind and an equally strong tailwind are not equal and opposite yardage adjustments. In Trackman’s modelled six-iron examples, the headwind takes away more carry than the following wind gives back. Understanding the principles can make a big difference..
Why the return shot behaves differently
The ball responds to the air moving around it. A headwind increases that relative airflow, affecting both drag and lift. A shot can climb higher without having left the club with extra spin. A following wind produces a different flight, not a mirror image of the loss.
The landing changes too. Trackman’s examples show steeper arrivals into the wind and flatter ones downwind. Extra distance is therefore only part of the club-selection problem: the ball may release differently after landing.
Those examples are not a universal conversion table. Launch, spin and wind conditions matter. For a downwind approach, consider where the ball must land and how much room it has to stop, rather than simply subtracting the yardage you added into the breeze.