YourHuckleberrywrote a review of Petzl Express Quickdraw Sling on October 24, 2014
Familiarity: I've put it through the wringer
I'm a bit of a dirtbag at times. I take my draws apart, use the rope end biners for trad draws, put em back together in weird configurations, and try every biner on the market in the hopes that it will make me a stronger sport climber (it won't.)
Cannibalizing/customizing your draws is kind of tricky with some of the other rope-end retention systems on the market. BD/WC/Metolius uses a sewn-in rubber sleeve that might actually be made out of laughy-taffy. Camp uses, well, nothing at all. The geniuses over at Petzl have designed a little rubber cap that slips over the biner and the dogbone, so it's easy to remove. You can even buy them separately should you lose one.
This is a god-send for a carabiner-poor climber such as myself.
Add to that the beefiest nylon dogbone known to man, and you've got an extra 6" reach for making that spicy clip. Feel free to leave them on your project, with all that beef it's gonna take a long time for mother nature to do any significant damage. I promise I won't steal them and send your project.
I recommend all sport climbers to pick up a dozen of these in various sizes and upgrade ya dogbone game.
Cons: Grey color let's everyone know you haven't had them for more than a year. Heavier than free-soloing.