Review on ProAm USA Heavy Duty Tripod Legs: Stability and Reliability for Professional Photography by Stephen Ball

The ring you tighten around the center of the tripod to hold the legs in place sucks! It's made out of cheap flimsy plastic and broke on the first try to tighten it! They're practically useless to me now that I bought them to mount my Ronin M on, but now the legs won't stay in place when there's a lot of weight on them. This would be INCREDIBLE if this were corrected as the rest of the legs are mostly metal.