I don't see a problem with threatening violence. Let's say that you're there with one friend, and the first 15 people in line are all friends. let's say 6 of them don't even show up until like 1pm (they plan on alternating hotel sleep-in for the next show). How are two people going to make that many conspirators listen to any kind of "fairness" argument? It probably isn't their first time and they have some kind of entitlement issue.
What you need to do is get there early enough to be able to count (roughly) EVERYONE in front of you (let's face it, if you're like 150 in line you better hope the people before you have been vigilant). Ask to see a list. Ask to see everyone's hand or number. If there are enough people missing, start raising hell. Be LOUD. If the M.I.A.'s aren't back within a reasonable time, tell the head person you're going to start fucking things up. DEMAND that new numbers be issued. Throw stuff at them. Try to grab their marker, notebook, or stamp away
Don't let these little Nazis take control again. I have heard MANY stories about this happening. Just because things went smoothly at YOUR Elevation show doesn't mean it didn't happen somewhere else. You shouldn't be afraid to threaten people, because these self-proclaimed V.I.P.'s are afraid to do anything physical and get booted by security.
laz