This Stiffness Stack™ is 2.5x stiffer than a traditional wedge shaft and allows the kickpoint to be optimized for the perfect launch and trajectory.

ZNE vs. Original ZNE vs. the leading all-steel competition.
| ZNE v. Original ZNE | ZNE v. Leading Steel Shafts |
|---|---|
| The Stiffness Stack™ is 54% stiffer resulting in improved distance control | 92% better distance control |
| Performed with a higher spin rate with a lower launch for 50% better accuracy | 10% tighter dispersion |

| 90 gm | 115 gm | 130 gm | |
|---|---|---|---|
| Weight | 90 gm | 115 gm | 130 gm |
| Flex | Wedge | Wedge | Wedge |
| Torque | 2.3 degrees | 1.6 degrees | 1.5 degrees |
| Frequency | 430 CPM | 500 CPM | 530 CPM |
| Tip | Carbon | Carbon | Carbon |
| Butt Diameter | .600 inches | .610 inches | .615 inches |
| Tip Diameter | .355 Taper | .355 Taper | .355 Taper |
| Cutting | DO NOT TIP CUT | DO NOT TIP CUT | DO NOT TIP CUT |