Leon 911
Super Freak
May be they had to put the joint to make sure the leg actually is made of solid material in order to protect the fishnet. The reason being the fish net on top can easily slide or flex over solid leg material rather than both being rubberized and flexible materials / thereby leaving marks on the inner leg. . Also as far the change to a different joint form the originally shown / again could be that the fishnet was getting caught less in the vs the older joint.
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