The change on the SWD was made from political pressure.As I understand it, the management division wanted to keep the ban as did most of the hunters.You can go to arkansashunting.net's waterfowl forum and get more than I can give you.Personally I don't use the SWD.I believe that somedays they help and somedays they hurt.I'm to cheap to buy one and to lazy to keep on going.LOL.Truthfully I already have enough to carry in as it is for my fat old butt. I do think that the 2 hen rule is too much.Personally I try not to shoot any mallard hens.