Kill bad creatives at the thumbstop, before they ever cost you a conversion.

Kill bad creatives at the thumbstop, before they ever cost you a conversion.
Waiting for $0 conversions to judge a creative wastes 3x payout per dud.
Early leading signal: 3-second view rate / hook rate. If under ~25% on cold traffic, the creative isn't being SEEN — conversion data will never come.
Cut on hook rate at $15 spent → save the kill-rule budget for creatives that actually earn the test.
Filter at the hook. Let the survivors fight.