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Length and Lie

How golf club length and lie apply to True Length Technology® 

Length and Lie – Understand the importance of the correct length and lie of your golf clubs

Below are a series of CAD images to help in the understanding of the importance of length and lie.

The images show what happens at ground level when a single athletic address position is maintained. In other words, all grips end at exactly the same vertical hand position, placing all the deviation at the head. If the length and lie are designed correctly (slide 1 – True Length Technology®) the head will arrive ‘square at impact’. If the length and lie are not designed correctly, the resultant head position will ‘not be square at impact’ (slides 2 and 3 – typical OEM specifications – 2 views).

This presentation will also help clubmakers develop a sound understanding of why True Length Technology® is the only way they should be building clubs. Please see my Club Maker’s Registry  to become a TLT Clubfitter and have your shop listed on my site.

What happens at ground level when you keep a consistent hand position?

The following 3 CAD shots are based on maintaining a singular athletic address position with a common grip height position. This is where your spine tilt as well as the distance from your hands to the ground, remain constant – for every club.

  • No palming
  • No excess shaft above your hands
  • Consistent address position

Slide 1

True Length Technology® math model 

Build specifications

With a perfect set-up regardless of your size, all lies angles will sit perfectly from a singular athletic address position.

True Length Technology® has 16 adult fitting charts and 10 more children’s charts, so everyone can be fit perfectly to the math model. No gripping up or down all the while maintaining the same knee bend and spine tilt. One singular athletic address position for every club. It doesn’t get any simpler than this.

This is what you want for a consistent address and a consistent ball flight!

This is True Length Technology!

True Length Technology specifications with a common address position

A True Length Technology fit
Every club sits correctly relative to a singular common address position.
  • True Length Technology with correct lie angles
  • One hand position
  • One singular address position
  • All 3 clubs will sit parallel to the ground relative to this singular athletic address position
  • All lie angles are now correct relative to the singular athletic address (and hand) position
  • With the correct TLT Series every golfer will stand athletic
  • 16 charts that fit a range from a giant of a man to a petite woman
  • One singular athletic address position
  • One swing
  • Mathematically perfect lengths and lie angles

Slide 2 – This is NOT what you want as you will be forced to compensate

Typical OEM specifications

2 different views to help understand the effects of incorrect lengths and lies. (slides 2 and 3)
By maintaining the singular and consistent athletic address position (common grip height position) from the True Length Technology® math model above, it is obvious that the length’s of these clubs are incorrect relative to their lie angles. This is a randomly picked typical set of published Original Equipment Manufacturers (OEM) specifications.

OEM specifications – 1/2″ length increment with 1/2* lie angle change per club.

Incorrect lie angles
From your common athletic address position – the lengths of these OEM specifications are wrong.
 So with a common grip height:
  • the SW sitting correct at ground level
  • the 7 iron would be 1.24″ below the ground
  • the 3 iron would have to be 2.37″ below the ground.
Slide 3  – Slide 2 revised – Again, this is NOT what you want
Resultant: The golf club has to sit on the ground so the toe has to come up on the 3 and 7 irons!
Again maintaining a common grip height position:
OEM specifications – 1/2″ length increment with 1/2* lie angle change per club.
Lie angle errors now exist
As the club cannot sit below the grade, the lie angle error of this OEM set becomes rather obvious.
 So with a common grip height:
    • The SW is sitting correct at ground level
    • The 7 iron is sitting upright 3.8 degrees
    • The 3 iron is sitting upright 6.4 degrees
  • Directional control, thin shots, risk of the heel catching, choking down in an attempt to correct – are all issues that will live in this OEM set

True Length Technology® will correct the combination of the length and lie – promoting the desired ‘Consistent Athletic Address Position’ as shown in Slide 1

Lie angle gage
A properly measured lie angle

Summary

  • The above scenarios were developed to help golfers and golf club makers understand the importance of length and lie and why True Length Technology® was developed
  • In a typical of set of OEM irons (as purchased), a few clubs may incorrectly have the same lie but different lengths. If so these clubs need to be corrected or you will suffer directional control issues
  • You don’t want to compensate your address position so you fit the golf club. You want to remain athletic for every golf club and have the golf club fit you!
  • True Length Technology® has multiple ways of correcting your clubs through length adjustments, lie adjustments, or a combination of both
  • Custom fit golf clubs, built or corrected to the True Length Technology® math model, will bring your handicap down and your enjoyment up
  • Please contact us to get your golf clubs retrofit or have a new set built.