What will be the effect of adding four grams to the club head?

Adding weight to the club head affects the swing weight of the club, which is a measure of how the weight of the club is distributed between the head and the grip. Specifically, swing weight increases or decreases based on changes in the mass of the club head.

In this case, adding four grams to the club head will result in an increase in swing weight, typically by about one point for every additional ten grams of weight added. Therefore, with the addition of four grams, the swing weight will increase approximately by two points.

If a player or instructor wants to adjust the swing characteristics of a club, understanding how weight added to the club head alters swing weight can be crucial. A heavier club head will generally make it feel more stable through the swing and can lead to different ball flight characteristics, ultimately impacting performance.