The wind socks don't work on the big geese, they always flare of the side with the wind socks, I don't know why but they just do. I wouldn't use them for big geese. But the lessers, the socks work great on them they glide right in no proboblem. My canada goose spread consists of magnum shells, but I think I am going to buy 2 doz bigfoots by next fall.