I too use the Northeast Tactical Singlepoint with Bungee. I also use a vickers tactical.With my AR's, I've been using these guys single point elastic sling w/snap hook (its the HK style hooK). Now with my new XCR it seems to be lower than I like. So I got their reg single point sling w/snap hook. Both in OD green. http://www.northeasttactical.com/
I made a couple of reg SPS's from 1.25" black webbing & lobster claw hooks. Nothing fancy, no adjustability, Just a big loop sewn together with a lobster claw style hook on it.