Trampoline Effect

When a golfer strikes a golf ball, the goal is to compress the face of the club. The problem most golfers experience, and they don't know this, is, most golfers can not compress the face of the club because golf clubs are built to be tested at 110 MPH, per U.S.G.A. protocol. If a golfer does not swing his driver at 110 MPH, he can not compress the face of the club and does not experience the Trampoline Effect.

By building a golf club with a thin face, and by removing the internal metal bracing that most manufacturers use to prevent the face from caving in, every golfer, no matter their swing speed, can now compress the face of the club and get the maximum Trampoline Effect, the amount of time it takes the club face to compress and spring back to its original form.

Smash Factor

The maximum Smash Factor allowed by the U.S.G.A. is 1.50. This measurement is the difference between swing speed and ball speed.
If your swing speed is 100 MPH, and your ball speed is 150 MPH, your Smash Factor is 1.50.
If your swing speed is 110 MPH and your ball speed is 163 MPH, your Smash Factor is 1.48.
If your swing speed is 95 MPH and your ball speed is 125 MPH, your Smash Factor is 1.31.
To calculate, divide your ball speed by swing speed (150/100=1.50).

What is C.O.R.?

Coefficient of Restitution, or C.O.R., is one of the most important terms in golf. This is a measurement calculated by the U.S.G.A. when it tests golf clubs for conformity. If a golf club does not meet the C.O.R. standards, the U.S.G.A. could rule it non-conforming and illegal for tournament play.

The maximum C.O.R. allowed by the U.S.G.A. is .830. This transfer of energy is a measurement of how much energy is transferred from the club head to the ball upon impact. The U.S.G.A. only allows 83% of the club head energy to be transferred to the ball.

What is C.T.?

Characteristic Time, or C.T., is a measurement taken by the U.S.G.A. when testing golf clubs. This measurement determined how long the ball lingers on the face of the club upon impact. The longer the ball stays on the face of the club, the farther the ball will travel.

Fujikura Shafts

Flexes Speed Torque

Ladies 70 MPH 5.0

Senior 80 MPH 5.0

Regular 80-90 MPH 4.0

Stiff 90-105 MPH 4.0

X-Stiff 105 MPH + 3.5