Well i also use the hunter saftey system, I love it. and i have never had a problem untill the other night when i shot my buck. I didnt put the strap up high enough and when i went to draw it caught my arm at half draw and i had to bend my elbow in and put it under the starp. Luckly i could do this and still get my buck!!
But i would never hunt with out it, I even wear it when i hunt on the ground sometimes, Espeacially gun hunting, since i have the one that reverses to orange. I like to have it on just in case i shoot something, that way i can hook the deer to the bottom hook thing and drag it out. its alot easier.