The garage story
A made-up backstory for a real DGM racer.
Chip Shiftwell once changed five parts after one rough test. The Volkswagen rolled out with no clue which change helped and which made things worse.
Now Chip keeps a small test card. One change, one run, one note. Progress may look slow from the stands. From the workbench, it looks like a plan that works.
“I've changed one thing this time, and I've written it down. Please don't adjust anything else yet. I'd like to know whether that first change helped.”