I'm not familiar with the Nelson but, looking at the pic, the harness appears very uncomfortable. The straps are too thin and at $100 I'd bet the leather is junk. Don't really know though; never seen one. I regularly carry a S&W 686, about the same weight as a 629, in a wide pancake on a stiff belt and it's very comfortable and much faster than any shoulder rig. YMMV.