If you're giggin', you may want to checkout the QuikLok 746.
I have been using the two tier version of this stand for four years and it does not move at all.
The Z-761 is heavy duty as well, but I do not have any practical experience with this.
I know one person using the Z-71, it's very sturdy, sets up in 10 seconds and moderately priced.
You may want to check these out.
Good Luck,
Gary
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Travlin' Easy
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)