The Echoes 2181-2188 batch demonstrates all six editorial types (A-F) operating simultaneously: Type-A (standard title assignment for untitled chapters), Type-B (mechanical fixes like stray quotes), Type-C (narrative continuity checks), Type-D (thematic coherence identification), Type-E (cross-chapter reference validation), and Type-F (proactive gap detection — the duplicate title catch). This layered quality assurance is what enables the 66-chapter-per-hour velocity while maintaining narrative coherence.