Obviously this is my improvement on the recently discovered bootleg hands, I thought they were a good starting point, but had some severe shortcomings, so this is my improved design.
I truly think these could be the future standard for moc hands.
The aforementioned ball joint, but also the digits were more limited than I was complacent with, the fingers had no splay to them, and the thumb constantly juts out awkwardly, as well, the fingers were missing a joint, which I found really awkward looking, and the jointing of the fingers made them look odd.
So I improved the jointing of the hand, 3 joints in the fingers, and added a hinge to give the thumb a more natural range.