The number of medical people on standby varied throughout the week. Now four, sometimes 2 or 3. I thought there were 3 for the pairs vs 2 for the women and dance, but maybe they moved around when i wasn't watching. I thought there were 3 for pairs because it was potentially more dangerous, but if that was the case then why four for men? I'm thinking it might have something to do with interest from the medical volunteers. More of them wanted to see the men? This is all speculation based on totally incomplete observation...