[Alex.q]

Well, my team actually volunteers to pass out the kit to the other teams, so we stay until the last team is through. At the MN kickoff, I'm not sure how teams line up, but we set it up so each team waits in line and can only send 3(or 4?) students/mentors in to collect the kit. We regulate it so that there are only so many people in the room at once and its fairly orderly.

I guess I understand if a team needs to catch a bus, but in other circumstances, I don't see how 10 minutes is going to help a team create a winning design. Maybe you could have someone briefly mention before the broadcast starts that teams can line up after the broadcast is over.