Thanks for the info Moke. I think I'm gonna track a couple down or make a couple before that weekend. Would you use 3 (one one each 'horizontal' leg) or just one bigger one? What kinds of places sell them? I don't think there is a 'stage supply' company where I live.
Also, if things got a bit hairy, do you really think it's more stable than pegs (i was gonna use 4 of them)? I don't want to screw up my mics and regret not using pegs because I was just too lazy to deal with it all weekend.