Golf Club Fitting and Technical Specifications

Initial Club Inspection and Weight Analysis

The club fitting process begins with an inspection of the player's current equipment, typically using a $7$ iron as the standard comparison tool. Key metrics include club length, swing weight, and overall weight. Swing weight, which indicates how heavy the club head feels during a swing, generally ranges from $D0$ to $D3$, with the sample club measuring at $D1$. While a graphite shafted club is lighter in overall weight than a steel shafted club, they may share the same swing weight. These measurements provide a baseline for the fitter to understand the player's existing equipment preferences.

Shaft Frequency and Flex Determination

A frequency machine is utilized to measure the shaft's vibrations, producing a numeric value that is referenced against a chart to determine the actual flex. This process considers both the length of the club and the frequency number to confirm how the shaft is playing in reality versus its labeled flex. This step is essential for establishing an accurate baseline of the player's current shaft performance.

Loft, Lie, and Grip Specifications

Fitters measure grip size, loft, and lie angle using specialized machinery. For the club in this session, the loft is $32$ and the lie is $60.5$. These specifications are tailored to the golfer's physical build and swing style, such as using a flatter lie angle for players with long arms or a shallow swing. Because club specifications can shift over time, it is recommended to have lofts and lies checked and tuned up once a year to maintain consistency, especially when purchasing new sets.

Questions & Discussion

Interviewer: So Matt, that comes up with a number now. Right? And then you've got a chart over here that it kind of tells you how the shaft is really playing.

Matt: Correct. So based off the length and that number here, it tells us what the actual flex is. And that helps out a lot quicker.

Interviewer: What's the lie and loft?

Matt: The loft is $32$ and the lie is $60.5$. I have long arms and I kind of have a flatter lie angle because I have a shallow swing. Once I have those numbers and it's set to my swing, then it's good to have that.