[Dove Commander]

By shooting a full choke 16's, you realise you have to pay attention and center each shot. Keeps your head in the game. I use to shoot .020 (M) and had "inkballs" as their called, but I shot fast. Had a 98-99 average for years.
Now I use a full choke at all yardages, and take a little more time being precise, (still a 99 ave) and this patience has improved my handicap scores. It has forced me to be more precise, both mentally and physically.