Event scoring was measured at chance level on the 77 Rodden-AA holdout cases (BUG-1091). The new flow finds the dividing line nearest the reported time, describes how the flipped divisional charts read on either side, asks up to five self-assessment questions, and saves the user's own choice (provenance user_choice) with the domains to read in both versions. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DbBXozbkyFNqbu8pVEtZ7W