NIPPON N.S.PRO MODUS3
After several years of PGA tour testing, the Nippon N.S.Pro MODUS3 was made available to the golfing public in 2010. In 2013, a second version was moved from the tour to the public. There are some unique properties to these designs. One of which is the use of a spring steel alloy. Rather than me tell the story, Here is a video I shot early in my video journalism days that tells the Nippon N.S.Pro Modus3 story.
The Modus3 profile shows a quick loss of stiffness near the butt and a long stiff tip. It is made from a different grade of steel. It is in the bags of several PGA tour pros and has accumulated a lot of wins since it was first introduced in 2010. It is light, installed weight is around 104 grams. This is where the game is headed and Nippon has developed light weight high performance shafts using materials from their parent companies automotive experience. Here is a look at the linear and radial profiles of the original N.S.Pro Modus3 Tour 120 and the N.S.Pro Modus3 Tour 130 introduced to the public in 2013.At the 2013 PGA Merchandise Show Demo day, DevotedGolfer.tv editor John Taylor discussed the Modus3 with Hiro Fukuda of NHK Intex Corporation/Nippon Shafts.
In this interview Hiro Fukuda mentions control of wall thickness to shape the stiffness profile of the shafts. This illustration from the Nippon 2013 product catalog illustrates what he is talking about. In a uniform material, steel being a uniform material as opposed to carbon fiber, wall thickness and shaft diameter create the bend profile of the golf shaft. By looking at these images and comparing them to the EI profiles, you can see how wall shape translates to bend profile. Those of us that are affiliated with the Fit2Score EI profile knowledge base like to see manufacturers using EI profiles to explain shafts in their publications. It validates our system when our graphic images closely match those created by the shaft company engineers.