ASPA’s current guidance makes the moderator responsible for equitable shares, audience engagement, and an on-time finish. SECAC publishes several valid ways to divide a 105-minute session among four or five speakers while preserving introductions, transitions, and discussion. Together they illustrate that presenter count changes the arithmetic; it does not erase the shared finish.
Set this timer to the whole session and reserve the common discussion and final turnover. Then create a per-panelist cue plan inside the presentation portion. If a presenter ends early, the moderator can hold the shared schedule, bring questions forward only when allowed, or move deliberately to the next boundary—without silently extending the room.