[marac]

First thing that popped in my mind was the issue with the cocking handle lol (real steel point of view). If the bar extended from the bottom rather than top it might work, not get in the way. Then the sway; not necessarily when running but if dragging the casualty (one of the times you'd sling your rifle) it appears to me as if the rifle would get in the way, maybe even slap the casualty around a bit, which I guess could be argued as means to keep the casualty awake. Also, I don't like the idea of something crucially important to me being secured to me by gravity alone. I could lose it by doing a couple involuntary rolls downhill. Interesting idea though. I'd like to see videos of it used in various active situations.