Over time, so many things have been added to the golf club in the form of flexes, kick points, torques etc. On top of these, one must consider the weight of the shaft as well; for all of these factors do have a considerable impact on the overall playing conditions.
Shaft weights vary depending on the design and type of material used. For instance, a regular Apollo steel shaft with mid-kick point weighs about 5.19 ounces. The same shaft made from graphite weighs around 4.19 ounces. If we switch to a boron graphite shaft, the weight is around 3.12 ounces, which still reduces further if we exclude the boron. Without boron its’ weight becomes 2.6 ounces.
It has been noted that a lighter shaft will allow a player to generate higher clubhead speed. The clubhead holds a greater percentage of the club’s weight, and eventually, this will put additional stress on the shaft. As a result, it requires more flex and torque. In this situation, a stiffer flex is necessary to provide for the same playing conditions as a club with a regular weight shaft.
For a heavier shaft, you can reverse the effect. That is, the clubhead has the lesser percentage of the club’s weight. This, in turn, reduces the amount of stress on the shaft. In this case, you need more flex.
Swing weight basically determines the weight distribution within a club. It is to be noted that the higher the swing weight of a club, the heavier the clubhead in relation to shaft and grip. Similarly, by lowering the swing weight, you will get a lighter clubhead in relation to shaft and grip.
Swing weight typically influences the performance of a club and its’ shaft. Each component of a club (i.e. shaft, grip, and clubhead) maintains a dead weight, which determines its’ swing weight.
It is obvious that shifting from a regular to a lightweight shaft will reduce the dead weight of a club, but as the percentage of the dead weight is greater in the clubhead, the swing weight will also increase. As swing weight is directly related to the components in a club, changing any component will affect the swing weight.
The major advantage of a lighter swing weight is that it reduces the stress on the shaft during a swing. If you ever fit identical shafts to a club with variable swing weights, the shaft will then act like a stiffer shaft. To cancel out this phenomenon, with a lighter club, you will achieve greater clubhead speed.
It is a tough task to find an optimum swing weight. It is, however, essential to go through some trouble to reach the point where you find the best option for you. The swing weight has different ranges in golf clubs, i.e. it normally ranges from C6 for juniors and women to D2 for men. Again, an important point one should keep in mind is that modification in any of the components of a club will affect its’ swing weight accordingly.
You might also want to learn about Choosing a Golf Ball and Changing the Swing Weight of a Golf Club.