i just mounted a pair on some nordica blowers, and wow. they are definitely legit. anyone whose not sold on them, you should be. im a die hard turntable fan, but the jester/duke is the first thing to come out that id be comfortable on.
for one, they are reallllllly simple. its obvious a lot of effort has gone into eliminating un-needed parts. thats a good thing, as the more complex things are, the more likely they are to break. everything on them is either fiber-reinforced nylon, aluminum, or steel. the mounting pattern is the tightest ive seen for a trackmount binding, especially the toe piece.
what else is cool, is the idea of cooncentrating the swing weight of the binder. by keeping the spring in the upper part of the binding, and mounting the toe spring sideways, the already minimal weight is moved closer to your center of rotation.
the only things i see with them that i dont really like, are: the toe height. the heels are about as high as most binders, but the toes have as much lift as a set of standard lifted looks.
no upward release in the toe.
the clamping area on the heel seems kinda small, like the area that pushes down. im sure its fine, but it doesnt seem like a very thick lip thats pressing down.
so other than a few little discrepancies, they are definitely legit.