What adds 4 grams to the club head?

The question pertains to an aspect of golf club design, particularly focusing on how weight alterations can affect performance. The correct response indicates that adding 2 points (which typically refers to a specific measurement in golf like grams or swing weight) corresponds to an increase in the weight of the club head, specifically by 4 grams.

Understanding that different weights can be adjusted to optimize golf club performance, professionals and manufacturers frequently use 'points' as a way of quantifying changes in swing weight or head weight. The relationship between points and grams is crucial; in this scenario, the key detail is that an increase of 2 points effectively translates to an additional 4 grams added to the club head's weight.

By recognizing this relationship, players and fitters can make informed decisions about adjustments for better performance, indicating why this answer stands out as correct. The other options represent different increments that do not align with the established conversion, missing the specific nuance needed to satisfy the requirement of the question accurately.