Wilson Steam 100S BLX against Wilson Ultra 99 Pro — specs, our 0–10 scores and who plays each one on tour. Every number here comes from the frame catalogue.
| Spec | Wilson Steam 100S BLX | Wilson Ultra 99 Pro |
|---|---|---|
| Weight (unstrung) | 295g | 305g |
| Head Size | 100 sq in | 99 sq in |
| Balance | Head Light | Head Light |
| String Pattern | 18x16 | 16x18 |
| Swingweight | 303 | 330 |
| RA Stiffness | 65 | 69 |
| Strung Weight | 320g | 323g |
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