A PM on a $14M road job in the Hunter Valley had been spotting variations for
months but only documenting about 30% of them. The rest sat as bullet notes — too
time-consuming to write up formally.
He started using the Day 11 prompt. Whenever he spotted a potential variation, he'd
type 4–6 bullet points into ChatGPT during smoko. Draft variation letter back in 60
seconds. Review it after dinner. Send the next morning.
One quarter later: 38 variations documented. About $112k of recovered cost. The
principal accepted 31 outright.
His words: "The worst part was realising how much we'd been losing for years."
The prompt is in Day 11. The notebook you already have.