A lot of it depends on the presentation of the target and where your barrels are regulated to pattern. The first thing I would do is go pattern your gun. Many dedicated trap type guns are regulated to shoot high so you never lose sight of the bird. It's called, "floating the bird." Each gun is different and each shooter sees the target a little differently. My advice is to go to the pattern board and then go from there.

"As for me and my house we will shoot Damascus!"