String & Racket Finder
WILSON SHIFT tennis rackets compared
The concept frame that made it to shelves: engineered to bend vertically while resisting torsion, so the face stays honest while the launch window grows. Spin through stability rather than through an open bed — an actual idea, not just a name.
Compare these frames in the finder →Specifications and scores
All 2 current WILSON SHIFT models, with unstrung weight, head size, string pattern, stiffness (RA), swingweight, balance and beam width, followed by the eleven playing axes rated 0–10 and a difficulty rating.
| Model | Weight | Head | Pattern | Stiffness | Swingweight | Balance | Beam | Ctrl | Prec | Spin | Pwr | Feel | Stab | Man | Serve | Smsh | Slice | Ret | Diff |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shift 99 | 300g | 99 | 16x20 | 57 RA | ~315 | ~325 | 23 | 9 | 8 | 6 | 6 | 9 | 6 | 7 | 6 | 6 | 9 | 6 | 6 |
| Shift 99 Pro | 315g | 99 | 16x20 | 57 RA | ~328 | ~320 | 23 | 9 | 8 | 6 | 7 | 9 | 9 | 4 | 7 | 8 | 9 | 8 | 8 |
Swipe the table sideways for the remaining columns.
Axes, in order: Control (flat) · Precision · Spin · Power · Feel / comfort · Stability · Maneuverability · Serve · Smash & overhead · Slice / touch · Return / blocking. Difficulty is how demanding the frame is to use well, not how good it is.
Choosing between them
Frames in one family share a construction story but not a playing character — head size, pattern and swingweight move the numbers above far more than the marketing does. If you want a shortlist matched to how you actually play, and a string bed matched to the frame, the finder does that in a few taps.