I think I am losing it. I have been hunting birds my whole life. Dove, pheasant, geese, but never ducks. I am having a really hard time when it comes to ducks. I am using a 12 ga. 28in barrel and #2 shot. I have hit a few, but am not hitting the ones that are a further out or up high. I am watching other guys hit, so I know they are withing range. Do you have to leed these further or closer? I am finishing through with my shot. How far are you leading the bird(1,2,3 body lengths)? Is my shot size correct?