I dunno about them being pure ####e. Rather appreciated the progress in issue slings between 1991 when I had the single sling in the Gulf and 2003 when I had the Assault Sling in Bosnia. Having carried everything from FN C1A1 and SMG to C7 and C7A1s on issue slings and all my hunting rifles on conventional slings, I liked the versatility.
The Assault Sling is not an infantry walk-in-the-woods sling. It is a very good stand on guard and do VCP sling. In a toboggan harness, it might be a very good thing. Where I truly valued the across the chest carry was whenever I had to look at some guy's papers or look him in the eye inside his vehicle. Having my rifle RIGHT THERE but with absolute muzzle control made me feel that I was in full control of my weapon. Whenever I had to walk the perimeter with my guys, I would unsnap the front snap and carry my rifle as a carbine on a loose carry at my side.
signed an NCO who has in fact been shot at, not just some Airsoft poser