Don't use them but man I certainly would. Got to see them at the sportsmanship show earlier this year and they looked good enough to me. We keep talking about avian and dsd like they're the best thing since sliced bread. They're good but let's be realistic. Tons of birds have been fooled with the foam decoys in the past and the Montana 3D is much better than they ever were. Heck, I used an avian breeder and an HS suzie snood last year. Left the decoys set and walked away to try and get on a bird. When I came back to my setup, I saw 3 heads there together. Couldn't see the bodies because of the roll of the hill. Until she moved off, I couldn't tell what was real and what was fake. This was at a bit of distance but still, it blew my mind. Go for it if you're looking for a good lightweight option that will do the job.