they look pretty good and are postured fairly similar to the DSD just not as detailed. personaly i think with the heavy duty rubber material people are fooled by the Zink decoy thinking its heavier than it really is. mine weights 2lbs 12oz, its really not noticable in the back of a good vest for the versitility over needing a decoy bag over the shoulder
there are several flaw to the zink though, i dont trust the valve yet. we'll see if it holds up but i could see it leaking air at some point. also they only have a hen in two positions and it seems that everyone needs a strutter or jake at the very least.
personally I use decoys as a situational tactic not an every time constent as some do so i need to be able to fold it up and put it away.