I've had success working with players focusing on "swing length" to improve in the scoring zone.

I’ve had success working with players focusing on “swing length” to improve in the scoring zone. With most players now carrying a minimum of 3 wedges, I suggest they take their wedges and range finder to their practice facility and “chart” their distances.
Take a simple index card and list the wedges they have in the bag in a column down the left side of the card, and then make columns for arm swing of 7:00, 9:00, and full swings. Hit several shots with each wedge from these 3 backswing positions, put the range finder to work to get your average distance, and fill in your card – giving the player a “distance chart” for your wedge play.
I feel this chart helps the players confidence
on the course when making wedge decisions.