These blades solve a similar problem in different ways: both provide the stability of Arylate-Carbon, but their layer placement changes when that stability becomes noticeable. Viscaria tends to reward a direct active stroke. Innerforce Layer ALC gives a little more sense of holding the ball before it leaves the racket.
Data that changes the choice
Normalized Racket Comparator scores, 0–100. The construction row explains why the small numbers feel different in the hand.
| Characteristic | Viscaria | Innerforce Layer ALC |
|---|---|---|
| Speed | 82 | 76 |
| Control | 70 | 76 |
| Spin potential | 86 | 87 |
| Construction | Outer ALC | Inner ALC |
Early timing: Viscaria’s faster outer-fibre response helps active blocks and counters leave the racket sooner.
Opening and touch: Innerforce’s extra control and deeper composite give more dwell for a safer first topspin and short game.
Outer ALC: Viscaria
With the composite layer near the outer ply, Viscaria has a crisp, immediate response. It is a natural fit for players who counter at the table, punch the backhand and want the racket to return energy clearly on a short stroke. The trade-off is that passive contacts and delicate receive require a calm hand and precise racket angle.
Inner ALC: Innerforce Layer ALC
Innerforce Layer ALC places the composite closer to the core, behind more wood. The contact tends to feel softer and more flexible, especially at lower impact. That can make opening against backspin, short touch and spin variation feel more intuitive, while the composite still offers stability when the stroke becomes stronger.
Who should change?
A player who often feels rushed with an outer-ALC blade may prefer the extra feedback of Innerforce Layer ALC. A player whose inner-fibre blade feels too soft or delayed on counters may appreciate Viscaria’s earlier release. Use identical rubbers and comparable weights when testing, otherwise the change in setup will hide the blade difference.
Method and sources
This guide combines Butterfly’s published construction information with the normalized catalogue values in Racket Comparator. It is practical guidance, not a laboratory claim. Check Butterfly’s current blade specifications before buying.
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