I have not used a Dt3800 I see in the specs it is 30% less money and supports 176lb vs 220 for the ST-132 which I assume is up market for Global.
At one point I thought I saw a link for the Global Truss "Duratruss" stands under another name, but I can't recall what it was now. It did make me wonder if Global Truss bought the Duratruss stand design from another company? I like mine a lot, but they do have some sharp edges to them as another labster pointed out.
Edit to add: The crank does not have a lock on it. I don't feel that this makes the stand unsafe, but when you go to lift your speaker off of the stand, the insert "comes with" the speaker if you don't lift the speaker straight up. Just something to watch out for.