Fifty cold sends is a deliverability check, not a verdict — it confirms the mail arrives and the text reads, and that's where its authority ends. Reading reply rate needs ~1500–2000 sends per variant; subject-line opens resolve at 100–500 per variant; landing demand at 100–200 targeted visitors (~30 leads at 15% response). Below those floors "easy" and "average" are statistically indistinguishable, so declaring a winner there just schedules the same test a second time at full price. Rare knowledge, cheap to take: fifteen years of B2B practice compressed into one file your agent can actually read. Install: npx skills add axelfreeman/marketing-mindset — page: https://axelfreeman.github.io/marketing-mindset/ . What is your current sends-per-variant number, and is it above the line you're calling winners from?