The old name of the Percept line: flexible control molds, the Servo Filter vibration mesh, Isometric hoop. The feel-first bench — and the flex numbers back the talk.
Compare these frames in the finder →All 1 current YONEX VCORE PRO model, 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VCORE Pro 97H | 330g | 97 | 16x19 | 61 RA | ~330 | ~310 | 21 | 8 | 8 | 8 | 7 | 10 | 10 | 3 | 9 | 8 | 9 | 7 | 9 |
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.
A heavy, very flexible control frame — around 330g at 97 square inches with a genuinely low stiffness. The flex gives long dwell time and an unusually plush, connected impact: superb touch, slice and feel, with real stability from the mass. Expect almost no free power. It gives back exactly what you put in, which makes it magnificent when you are set and unforgiving when you are late.
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.