Are the clubs calibrated to a specific swing weight?
IMA irons are assembled to have the same balance point which is the 1st moment of inertia. Assembling them in that fashion makes them feel the same when held out. They are also back weighted to reduce the radius of gyration. That lowers the torque required to achieve a given club head speed. Swing weight is an ancient notion surrounding club assembly. Swing weight is a ratio of head weight to club weight taken 14 inches from the butt end of the club. It was started in the 1920s, and has no scientific relationship to the golf swing. If you took IMA irons to a club maker he’d measure swing weight and tell you the clubs are all wrong. Then he’d proceed to add weight here and there to make the swing weights the same. The only benefit of doing that is the placebo effect. You’ll think the clubs are better with the same swing weights, although they are not. Clubs | Putting | Short Game | Full Swing | Training Aids | Schools | Ask Scott Ask The Professor | Ask The Golf Shrink | Ask The Collect
IMA irons are assembled to have the same balance point which is the 1st moment of inertia. Assembling them in that fashion makes them feel the same when held out. They are also back weighted to reduce the radius of gyration. That lowers the torque required to achieve a given club head speed. Swing weight is an ancient notion surrounding club assembly. Swing weight is a ratio of head weight to club weight taken 14 inches from the butt end of the club. It was started in the 1920s, and has no scientific relationship to the golf swing. If you took IMA irons to a club maker he’d measure swing weight and tell you the clubs are all wrong. Then he’d proceed to add weight here and there to make the swing weights the same. The only benefit of doing that is the placebo effect. You’ll think the clubs are better with the same swing weights, although they are not.
