A thin 7 iron can feel like a mystery if you change your stance, grip, and swing thought after every ball. A small, repeatable test gives you better information: where does the club meet the ground relative to the ball, and how often do you strike the ball cleanly?

Set up a line drill

At a practice area where ground markings are allowed, use an existing mark or a removable line on a mat. Put the ball just ahead of the line toward the target. Make five small rehearsal swings and observe where the club brushes the surface. Keep other people safely outside your swing and ball path.

For a ball-first strike, the club should meet the ball before the ground. The line is a reference for observing contact, not an instruction to force the club steeply into the turf. If you are unsure about your swing mechanics, work with a qualified instructor rather than trying to diagnose every miss from one drill.

Score 15 shots

Hit fifteen 7 irons at a safe target. Count the shots with clean ball-first contact. Write the result as a number out of fifteen. Also note your common miss: thin, heavy, left, or right. Resist making a different swing change after each ball; finish the first set to establish a baseline.

Repeat before making the test harder

On your next practice day, use the same club, mat or lie, and number of balls. Compare your clean-contact count with your first attempt. If you improve, see whether the result holds up another day. If the contact still varies, shorter swings and an easier target can make the pattern easier to observe.

Once you can repeat the contact test, add a start-line window: count shots that both make clean contact and start inside your target corridor. That gives you a new score without losing the original measure.

Open Divotory's free iron drills, log your baseline in the scorebook, or follow the Break 90 four-week path. Week one is free; weeks two through four require Basic or Plus membership. Results vary with the golfer and practice conditions.