Quick Hits: True Temper’s New GS-95 & Multi-Step Lite Shafts

2 new True Temper shafts highlight fall shaft offerings

True Temper unveiled two new steel shafts that I thought needed some additional explanation, aside from the normal marketing material you will see.

True Temper Multi-Step Lite Shaft $5.45 each

True Temper Multi-Step Lite Shaft $5.45 each

First up is the Multi-Step Lite, which is new from the standpoint it will be a normal catalog item. If you are a shaft aficionado, you might have seen or heard of this shaft before as this shaft had been formerly available to original equipment manufacturers. This is the shaft that will replace the popular Dynalite, which will soon be retired. It will be in the same cut weight range for the R and S flex (105g) and feature the same low bend point.

If the step pattern looks familiar, the shaft will be reminiscent of the Apollo Shadow, but a lighter weight version. For clubmakers who have relied on Dynalite as their “go-to” shaft might want to think about transitioning to the True Temper Multi-Step Lite now.

The True Temper GS-95 will be the new breed of lighter weight steel shafts on the market. The “95” in True Temper’s GS-95 denotes the cut weight of the shaft. By comparison, Dynamic Gold is @ 115g and mainstay lightweight designs like TT Lite and

True Temper GS95 Shaft $18.15 each

True Temper GS95 Shaft $18.15 each

Dynalite have been in the 105g range. Several of next year’s major name brand clubs with come equipped with shafts in the 95g weight range as their stock offerings, but at least the GS-95 will be much more affordable and widely available than the high performance Nippon NS950 or the KBS Tour 90 shafts.

The parallel tip True Temper GS-95 shaft will be available in discrete lengths. What we mean about that is instead of purchasing a master shaft that can be successfully tip trimmed per club you will buy a specific raw length for each head just like a taper tip shaft. Here is a chart that will help choose the right shaft. Just like taper tip shafts, the GS-95 will be butt trimmed only.

Raw Length         Club #

40”                 3 iron

39.5”                4 iron

39”                 5 iron

38.5”                6 iron

38”                 7 iron

37.5”                8 iron

37”                 9 iron

36.5”              Wedges

The reason why the GS-95 shafts are available in discrete lengths is the fact these are a “constant mass” design.  This is a fancy way of saying the shaft each raw length shaft weighs the same.  In normal parallel tip shafts, the shafts become increasingly lighter the short the shaft becomes, meaning the wedge shaft can be much lighter that the harder to hit long iron shafts.  In a constant mass design, if the cut shaft weight for a #3 iron is 95g, so are the wedges, which help with distance control in the scoring clubs where you need it most.

Using EI curves to evaluate the stiffness distribution along the length of the shaft, True Temper has what it calls Quad Zone Profiling, a design feature used to section the shaft into four distinct zones.  From there, the True Temper engineers where able to specifically target specific regions of the shaft for flexibility and wall thickness to optimize performance.

Energy Inertia (E.I.) Curves, or a three-point bending test is a way of measuring the load or the stiffness distribution of a golf shaft from the tip to butt more accurately than a deflection boards or frequency analyzer. Here is an example of an EI Curve on the GS-95 S-flex 3-iron shaft.

tt_shafts

I did have a chance to test the GS-95 out on the range and the course too.  I didn’t quite realize the added height, especially in comparison to the much lighter GS-75.  But that might had to be due to the head I tested it with.  The shaft was still being manufactured I received a taper tipped version for testing purposes since the parallel version wasn’t available at that time.  Since you never want to put a taper tip shaft in a parallel bore, I had to use an older model I had in reserve with the appropriate hosel size.  I will tell you this heads today are waaaaaay better than they were 10 years ago.

So are these new shafts.  For being as light as what it was, the GS-95 was very stable, not sloppy or whippy that many might associate with a high launching shaft, yet did not have a harsh feel. The GS-95 has a balance point biased toward the tip meaning that you can achieve normal swingweights without having to make the club longer or adding additional tip weights.

There was a nice separation between the R and S flex as shown in our Dynamic Shaft Fitting Index (DSFI) ranges.  The R-flex in our system would be for those golfers with a 69-79 mph swing speed range and the S-flex 75-87 mph range.

I hope that gives you a little more information about the two new offerings from True Temper.

True Temper GS95 Shaft $18.15 each
True Temper Multi-Step Lite Shaft $5.45 each

3 comments

  1. About calling EI “Energy Inertia”…
    It has nothing to do with energy and little to do with what clubfitters thing of as intertia. It would be better called “Elasticity Interia”, though even there “inertia” means something completely different from what you probably think.

    Actually, EI means “E times I” where E and I are separate quantities that engineers deal with all the time.
    “E” is the modulus of elasticity of the material, a measure of how flexible the bulk steel (or carbon composite) is.
    “I” is a measure of stiffness of the cross section of the shaft. The only think it has to do with “inertia” is that the formula for computing it is very similar to the formula for moment of inertia.
    And “EI” is “E” multiplied by “I”, nothing more and nothing less.

    For more on what EI means and how it is measured, see my article at .

  2. Gary Johnson says:

    Jeff: Just curious, is the Multi-Step Lite similar to the TT Release from a few years ago?

  3. Jeff Summitt says:

    Gary:

    If you are comparing the L it would have similar characteristics, but the Multi-Step Lite would be much stiffer in the R flex.

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