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Shotmaker Fitting Guide

Shotmaker is speed and load sensitive

If the insert is much softer than the shaft, it likely will not have much of an effect. Therefore, the insert needs to be stiff enough to remove the unwanted elements but not too stiff as to change the shaft's playing characteristics. It is a device that is best fitted by a professional.

Instead of labeling the insert with conventional flex designations like regular and stiff. It is our opinion that R and S designations could be misleading in this case. Therefore, we have decided to label it as follows:


Shotmaker Flexes and Fitting Chart


Note: Angular velocity is the speed golfer rotates his/her wrist immediate prior to striking golf ball. It is measured in degree per second.

The Shotmaker is likely more sensitive to load factor than swing speed. However, the best way to know for certain which flex is the best fit is to go through a dynamic fitting process by a clubfitter.

How to Determine the Load Factor

To determine the load factor of a particular golfer, golf professionals will need to measure golfer’s angular velocity, the speed by which a golfer rotates his/her wrist prior to striking the ball. The unit of measurement for angular velocity is degree per second. The normal range of it goes from 1000 to 2000 degree/second with 1500 degree/second as the mid range. Angular velocity could be measured inexpensively by a golf swing analyzer, GolfSense. It is available from Golf Galaxy, GolfSmith and Apple stores nationwide at $129.00.

Without an angular velocity tester, it would be difficult to gauge golfer’s load factor. Therefore, we offer an inaccurate way to measure the loading force by way of reference. From our field work, we came to know that the angular velocity of tour player Ernie is roughly 1500 degree/second, while Sergio’s is roughly 2000 degree/second.

Below are links to golf swing videos of these two players. If your swing is similar to Ernie, you have mid load. If your swing is similar to Sergio, you have high load. If you are in-between, then your load factor is mid-high. You can cut and paste the links below to your internet browser address bar to view them.

Ernie’s Golf Swing: Video

Sergio’s Golf Swing: Video

How to Determine a Proper Dimensional Fit Inside a Golf Shaft

Not every model of the insert fits every golf shaft. If the difference between the outside dimension of the insert and the inside dimension of the shaft is significant, even if the insert locks properly, it will be less effective. There are countless variations of internal shaft dimension in the market place. The current insert model P83 should fit many of them, but not all. We will introduce more models in the future to expand the range of compatibility.

The best way to determine if a proper fit exists is to insert the Shotmaker inside a shaft to see if it works. Remove the grip with air pressure, if possible, so that it can be reused. Install the insert according to instructions. After installation, hold the grip of the club in one hand and proceed to hit the mid section of the golf shaft on the palm of the other hand to see if there are rattles, shakes, or noises of any kind. If there isn’t, hit a dozen balls with the club to see if there are rattles, shakes or noises. If there is, then it is not a good fit. If there isn’t, then it is a good fit.

In general, two types of shaft bore are bad fit:

1. Uneven shaft bore, like the Aldila Voodoo S-Core;

2. Shaft bore with higher taper than the insert, like older True Temper shafts.

We will need your help in compiling a compatibility list. Call us for the latest update and share with us your compatibility experience.