What is MOI matching?
Before proceeding, it will be useful to gain a feel for what is meant by “Moment Of Inertia”, or MOI, when we refer to the fully assembled golf club. Recent advances in the clubmaking arena have led to the development of a machine that measures a golf clubs Moment of Inertia. We know that when we try to move any object, it resists our efforts according to its mass. If a mass is attached to the end of a rod and swung from point A to point B, it offers a certain resistance to our efforts. If the rod is lengthened, it is more difficult to make the swing in the same time as before because the MOI of the entire mass and rod as one object has been increased. Therefore, if we consider the object in our example to be a golf club, the MOI is a measurement of the golf club’s ability to resist our ability to rotate the golf club around our body. We can then say that MOI is the parameter that resists our efforts to swing and rotate the club around our body in the swing. The MOI can be increased by
