I would diffinitely ask at least 1 of my competitors to witness my weigh-in if I was lifting in my own meet. The lifters should demand it. You might want to watch the weights also, maybe weigh them or watch for changes of weights before the guy weighs. This just keeps everyone honest. Thats what I tell all NASA meet directors who lift in their own meets. I'm note pointing fingers, I just think it's good business to do it this way. Keeps rumors from starting.
By the way, Nice Site.