FQ,
As you might know I make slings...just not "tactical" ones....(though they can be found in some of the more interesting places on earth doing some VERY good work).
Since people call/email/chat with me daily about this, I have an opinion. My two cents.
Some folks NEED a carry strap that they can shoot with, a normal 2 point sling. USGI or such suffices.
Many folks WANT the coolest most popular thing that is on the cover of a magazine..... they USUALLY work fine.
A scant few folks get the weirdest crap ever for sling "systems". 3200 feet of nylon, 65 fatsex buckles, 40 feet of velcro and an instruction manual/CD.
Story: I met a gent at a training facility that will go nameless. High Speed Low Drag place.... aforementioned gent had some weird sling arrangement on his rifle and showed me how cool it was. It took him minutes to get into it and adjusted, then he went through the VERY VERY VERY lengthy procedure of adjustments that took it from a "CQB" sling to a "Sniper" sling with every variant of shooting in between. Truly the ultimate Mall Ninja accessory.
Before spending your hard earned cash on the coolest chunk o' nylon, PLEASE go try one out, think about your "mission" and how you carry, where you carry, methods of deployment etc etc. Be realistic with your self and calm that Walter Mitty Gene...then choose your gear!
Andy (who runs a 2 pointer on his Colt...mine is leather, but I like the GI issue ALOT)
PS Go here:
http://www.diytacticalstore.com/catalog/