I would recommend these Op/Tech connectors for your Industry Disgrace strap. They will instantly turn your strap into a quick-disconnect.
Industry Disgrace strap


DO NOT HANG A HEAVY CAMERA FROM THOSE
Op/TECH has their hardware made for them by Duraflex. Those lanyard connectors are a custom piece Duraflex makes for them (the female half is catalog 1/2" Mojave fixed bar, the male half with the lanyard is custom for Op/TECH).
We tested the same hardware and found it only holds about 50lb in a static load. Yank on it with a dynamic load (like from a strap), and those things disconnect super easy. They are great for something like am M4/3 or EVIL size camera, but are absolutely unsuitable for an SLR size rig with heavy L glass.
Any strap that will carry an SLR with plastic side release buckles needs to use a minimum of a 1" SRB, and it better be made by either Duraflex/National Molding or ITW Nexus. Anything smaller just won't have the lock strength and my experience with all the no-name Chinese buckles is that they are absolute crap.





