You should check out the Fritschi 88 Swiss military AT binding.
They are old but I had a pair and they were good for AT skiing. They had a pin to lock the heal that offered 360 degree release. (I guess only 180 was needed but 360 was there.) They also had a pivot point directly under foot, and had lateral and vertical toe release all with adjustable dins. It was a fun binding and released on cue every time. I sold them to a friend but want to buy a new set. To all readers, If anyone is selling any let me know I bought the first pair for $50.
I'm not clear on how your post fits in with the thread, but here's the Fritschi 88 in action: