# Shafts, Lofts and Lies · Golf Level 7: Upper-Advanced

Golf · Level 7: Upper-Advanced · Insporta Book (https://book.insporta.app/golf/level-7/shafts-lofts-and-lies/)

Shafts, Lofts and Lies in Golf (Level 7: Upper-Advanced) on Insporta: 40 sourced facts behind 4 tests. Covers: shaft flex; materials and weight; and more.

What sits behind the clubhead: shaft flex, materials and weight, lofts through the set, and blades and cavity backs.

## Test 1: Shaft flex

- Matched to swing speed and tempo. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Marked X. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- A is often called senior or amateur. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The head can arrive closed and with extra loft. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The shaft does not load enough to help. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- A stiff in one brand may be a regular in another. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- A low kick point tends to launch higher. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Faster swings suit stiffer shafts. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The lower the bend point, the higher the launch. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Flex is matched to swing speed. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))

## Test 2: Materials and weight

- Light shafts help clubhead speed. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Consistency matters more than speed in irons. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Hickory came from North America. (Source: General golf reference (club, teaching and course guides))
- The USGA had allowed them a few years earlier. (Source: R&A and USGA equipment history)
- Graphite also damps vibration. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Lower torque feels firmer. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Measured on a scale like D2. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Graphite spread from the 1970s. (Source: General golf reference (club, teaching and course guides))
- Steel iron shafts are the heaviest. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Strong and springy. (Source: General golf reference (club, teaching and course guides))

## Test 3: Lofts through the set

- A modern 7-iron can have the loft of an old 5-iron. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Modern heads still launch the ball high enough. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Many players add a gap wedge. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Practice mats and hard ground both bend them. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Forged carbon steel is softer. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Typically four degrees or so between irons. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Dynamic loft is measured at impact. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Measure before buying. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Lofts have strengthened steadily. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- B's face stands more upright. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))

## Test 4: Blades and cavity backs

- Also called a muscle back. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The cavity behind the face gives it the name. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Higher MOI, less lost on off-centre hits. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Less forgiveness, more feedback. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Help where needed, control where wanted. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Common in game-improvement irons. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The face arrives a fraction later. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Forgiveness falls as weight moves behind the middle. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- Forgiveness where the shots are hardest. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))
- The hollow behind the face moves the weight outward. (Source: Club-fitting guides (major manufacturers' fitting manuals and fitting-trade references))

Sources: Club-fitting and launch-monitor references, the Equipment Rules and the 2023 ball-testing announcement, golf physics texts, and course-architecture histories; original questions authored, nothing reproduced.

Take the tests: https://insporta.app/try?utm_source=book&utm_medium=referral