The 3-Ds are nice, but can be clunky and noisy to handle. Last year I used 2-D dekes similar to the Renzos line, and shot the biggest doe I've ever seen as she approached to check them out. The dekes in question were two young does, and nothing but printed cardboard with a cloth tail I made attached to their rumps. I have no doubt that they would've fooled a buck just as easily, and they're much lighter and easier to set up quietly than plastic dekes. They're also considerably less expensive.