Scaled +20% a day instead of doubling — kept CPA flat 3 weeks

Scaled +20% a day instead of doubling — kept CPA flat 3 weeks

Winner at $150/day, 2.3 ROAS. Old instinct: jack to $400 overnight → learning phase nukes it, CPA spikes 40%.

This time, +20% every 24h only if yesterday held target:
— $150 → $180 → $216 → $260...
— day 14: $640/day, ROAS still 2.1

The algo never panicked because I never shocked it.

Scale the staircase, not the elevator. Try it on your best set this week.