For what it's worth, that very setup is something I'd played with back in 2010, on the way to this concept - and the issues of gradual shifting and reduced resistance to the drawstroke and breaking retention; are what lead to the legacy thumb-pop feature and first with reverse edged knives, the leg-leash. The integrated leg-leash and garter takes that idea of stability and consistent resistance in multiple postures further down the road.
The Enigma being priced in line with quality gunbelts, is in part a recognition of that competing approach; and I believe that it adds functional and consistency in the same over the IWB-belt method.