I would like to see a photo of this rig your talking about. Thanks in advance.
It's an easy diy... a little piece of stiff cord between the binding ratchets, looped and tied off with a couple of zip ties at each end. Some of ratchets require drilling a hole in the tab of the ratchet. It works well....just pull and both release...fast and easy...and it also makes it easier to get strapped in. Volie light rail bindings apparently come this way and its where I got the idea. Having been in a treewell, in deep poo and now with a split; there are definite reasons to have something rigged to get out of bindings fast and easier.