Seven concurrent runs again this week, the same count as the last set. Same format, same offer, different mix of markets. The volume versus efficiency read from the last two weeks gets a third test, and it breaks again, just not in the same place.

The week closed at 27,689 tickets and $1.41M in total revenue, against $184.5K in media investment. Blended cost per acquisition landed at $6.66 a ticket; blended return on ad spend at 7.63x. Those are the numbers that get quoted. The more useful ones sit underneath them.

Across the seven runs, CAC ranged from $4.11 to $11.45 per ticket. Ranked by volume, the bottom of the range behaves the way week 1 did: the smallest run, 2,446 tickets, carried the highest CAC. The top is where it breaks this time, the reverse of week 2. The largest run by volume, 7,284 tickets, was not the cheapest to acquire. A run with less volume, 6,631 tickets, was, at $4.11. Two weeks running, the pattern has broken. It just keeps breaking at a different end.

Net revenue per attendee ranged from $40.63 to $48.16 across the same seven runs. Unlike the last two weeks, the two didn’t pull apart this time. The run with the lowest cost per acquisition also produced the highest net revenue per person of the week, and the run with the highest CAC produced the lowest. Cost efficiency and per-person yield lined up this week, after two weeks of pulling in opposite directions.

Week 4 changes the lineup again. Whether the volume versus efficiency read holds is still the open question.