How I scaled a red campaign 3x without killing it

How I scaled a red campaign 3x without killing it
Trench note: a winner that's barely red can become a fat green winner if you scale it right. Most people 5x the budget overnight and torch it.

Joint offer at −5% ROI but great CTR and on-page metrics. Didn't kill it. Scaled it cold-blooded:
— Day 1-3: +20% budget daily, same bids
— Cut the bottom 30% of widgets/placements every morning
— Duplicated the winning creative into 2 fresh ad sets to dodge fatigue

9 days in:
— Spend 3.1x
— ROI −5% to +14%
— Lost ~40% of placements, kept 90% of conversions

Scaling is pruning plus patience, not a budget slider yanked to the moon. Go test it.