What is primarily affected when replacing a 60-gram graphite shaft with a 110-gram steel shaft?

Replacing a 60-gram graphite shaft with a 110-gram steel shaft primarily affects the swing weight of the club. Swing weight is an important measure that influences how the club feels during the swing, specifically how heavy the head feels in relation to the weight of the shaft and grip.

When a heavier shaft is installed, such as moving from a lightweight graphite to a heavier steel shaft, the balance of the club changes. This often results in a higher swing weight, meaning the club head feels heavier to the golfer. This change can significantly impact the golfer's performance, as the feel of the club during the swing is crucial for generating speed and accuracy.

Other aspects, such as club length, grip comfort, and the type of shots, may be influenced indirectly by such a change, but they are not the primary impact of switching shafts. For instance, while the grip comfort may change slightly due to different materials or configurations, it is not the primary concern when considering the weight difference. Similarly, club length itself remains the same unless specifically altered. The type of shots a player can achieve depends on various factors including swing mechanics, but those are not the immediate considerations in this case.