RE: cant quite figure it out yet
Are you sure that the 30 to 40 yard range is accurate? I suggest you wade or step off 30 paces and mark it with a stick or decoy. Then try a shot at a duck with what you think is the proper lead. Now if you are still missing increase your lead till you start killing them. It is very easy to misjudge your distance on open water and that is why I suggest this. Also remember to follow through with you lead. Good luck!