Loosening one of the stand joints is what I've been doing, it's just that with the weight of everything above the joint, it takes an effort to keep it from collapsing down.
Loosening the connection of the clamp to stand was what I was going to try, but it wasn't a route I've gone with in the past.
I usually have one of the stand joints all the way down and that's the one I loosen to pivot things.
Of course, you can also rotate the entire stand on its wheels for minor adjustments.

