I agree they are better in the early season and also when the conditions are so that Ducks are looking for a place to sit (Such as Iced Up Conditions) it gives them the confidence they need to make the decision. I use one every chance I can and as long as it is legal than I wouldn't consider it unfair, if you think like that than you need to get rid of your decoys and calls. It is just another tool to use. Also if they are not illegal to use where you are hunting than why are you debating I would buy one to use for one season, what good is the wind driven one doing you if there is no wind?