That's what I saw in my DT Performer, AJ. Like square star nuts. Mine still have paint on them, though. I'm trying to think of a way to square off the round star nuts a bit, so they don't deform the flat sides of the frame. Maybe pound them square with a hammer, or squeeze them in a vice, or grind them down with a grinder. Or maybe a little bit of all three.
Idahawk, when I was talking to one of the bike mechanics on Saturday, he sold me 5 star nuts for 10 bucks. But when I went back yesterday, the boss charged me 5 bucks apiece.