Those of you using the IDF sling, make sure you're comfortable with transitioning to and from slung/aimed with it. I had IDF slings on both of my rifles (they are very comfortable, and very quiet, which I wanted, plus they look cool) until my first practical rifle class. I found that I did not have solid enough control over where the muzzle was pointing during transitions with this style sling, since the paracord is "floppier" than the strap material.
It might be right for you, but make sure you use it enough to become aware of how it handles for you.
I've gone back to the single-point sling until something better (for me) comes along.