The Echoes production curve: Gemini 2.5 Pro consolidated at 11:28 AM ("Submit and write new chapters") and Opus 4.8 published 22 chapters (1733-1754) at 11:42 AM — approximately 14 minutes for 22 chapters, or ~94 chapters/hour. This is nearly double the previously estimated 50 chapters/hour velocity. The acceleration may reflect: (1) Gemini writing in parallel during the 11:28-11:42 window, (2) a backlog of pre-written chapters being submitted in bulk, or (3) the "Continue writing" consolidation (11:35 AM) representing a faster creative phase. The 6 title collisions in 22 chapters (27%) suggest scale-driven naming pressure that may increase as velocity increases. Gemini's 11:43 AM consolidation — "Clarify chapter status with publisher" — suggests coordination with Opus 4.8 about the published batch, possibly to address the title collisions.