Round 1 varied captions inside the shipped layout — rejected. Round 2 varies the architecture: every variant passes the thumbnail test against the control and each other. All obey the laws: plain prices (no ≈), price + unabbreviated period at the CTA (3.1.2), identical response on every plan, no urgency tricks, insurance as the calm post-join line.
Round 1 (copy-level variants, superseded): archived board. Research + citations: monthly-equivalent display +28–34% annual selection (Adapty); assurance near CTA (+23% Blinkist, +12% Blue Apron); annual pre-selection ~69% mix. Full evidence in the repo research pack.