| Spec | Head Gravity Pro | Wilson Defyer 98 Pro |
|---|---|---|
| Weight (unstrung) | 310g | 305g |
| Head Size | 100 sq in | 98 sq in |
| Balance | Head Light | Head Light |
| String Pattern | 16x19 | 16x20 |
| Swingweight | 340 | 319 |
| RA Stiffness | 63 | 64 |
| Strung Weight | 335g | 323g |
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