Project X 7c3 - Driver Shaft Specs

The project was buried. The 7C3 code was erased from internal records.

| Parameter | Project X 7C3 | | :--- | :--- | | Weight | 72.5g | | Flex | TX (Tour Extra) | | Torque | 3.4° | | Launch | Low-Mid | | Spin | Mid-High (increasing with speed) | | Bend Profile | Double-kick (Stiff/Soft/Stiff) | | Balance Point | 48.5% (counterbalanced) | | Butt Diameter | 0.620” | | Tip Diameter | 0.335” | | Parallel Tip Length | 3.0” | project x 7c3 driver shaft specs

46.25” raw (Tour issue standard was 46.0”) Butt OD: 0.620” (thicker than any retail) Tip OD: 0.335” (standard) Tip-to-Balance Point: 22.75” (this was the anomaly. In a normal counterbalanced shaft, the balance point is high—near the grip. In the 7C3, it was exactly 1.25” lower than the mathematical model predicted.) The project was buried

He ran a deflection simulation. The 7C3 didn’t bend in a smooth arc like a modern Ventus. It stayed stiff in the handle, soft in the mid-section, then re-stiffened 8 inches from the tip. A double-kick profile. That meant one thing: this shaft was designed to launch the ball low, with increasing spin as swing speed climbed past 115 mph. In a normal counterbalanced shaft, the balance point

But that night, he couldn’t sleep. He kept hearing the note—G#. The same frequency as a 7C3’s harmonic death.

“Why? The specs are brilliant. It’s like a math puzzle.”