The goose in my avatar was taken with an Ace Hex Head blunt. It was the first of 5 I took that day (early goose season). It was an in flight shot to the head (yes I amazed the hell out of myself on that one. Using a broadhead in the presence of retrievers in my eyes is flat out stupid. I don't care how good your dog is (in my eyes, mine is the best) they are still a dog. Just think about how you are when a deer comes in. Weather your going to shoot it or not is irrelevant. You are still picking a spot possible practice drawing and letting down, but in YOUR mind, you got it. A dog ain't that smart. He sees a bird go down, his job is to go get it.
You need to practice with blunts till you can hit a golf ball (goose head) consistently from 20 yards and under, or you are not doing the bird any justice.
Hunt over decoys, wear camouflage cover anything not camo in natural material in the field. Sit on your knees, and lay as low to the ground as possible. Have someone else in a layout blind doing the calling for you, if you want, shoot once the landing gear is set and they are a couple feet from the ground, or let them land and then jump up. They will run till they catch flight, but that is the fun of it. To me a sitting bird is like a fish in a barrel. You need to give the bird the "house odds".
Just please do yourself a favor. If you are not consistent with your shooting abilities, practice till you can make that shot time and time again, and please (for Fido's sake) don't use broadheads.
As for fletching...I prefer three 4" full height flu flu's. For the distance you will be shooting, they work perfect. Using regular fletch will only frustrate you when you have to walk 200 yard searching for a feather instead of 60 and back in the game.
If you have any more questions, please don't hesitate to ask. I will help where ever I can.