You nailed it! I bet it is the stance. Open up your left toe and keep both eyes open. #1 is my favorite. Shot years of international in France. Absolutely loved it. Anyone who likes the game should invest in a trap gun. The fall of the stock and the rib will make a great difference. I favor Brownings.
Also make sure you’re not “winging”.....keep those arms tucked down close.
Prefer Brownings myself, have several.
Someone else mentioned stance and I’ll see if changes on #1. As far as Brownings, I’m using a Citori Lightning 28”