Butterfly Innerforce Layer ZLC vs Stiga Cybershape Carbon: Which Should You Buy?

UltraSpin comparison · 2026-06-11 · blade

Butterfly Innerforce Layer ZLCStiga Cybershape Carbon
Our rating8.7/108.4/10
feelSoft ZLC feel, woody touch, excellent dwell timeMedium-stiff with woody feedback; head-heavy balance; larger sweet spot placed further up the blade
handleFL / ST / AN / CSFlared (Classic) or Concave (Master)
plies7-ply, 5 wood + 2 ZL carbon (inner)5+2 carbon (CCF Close Core Fibre — carbon layer sits directly on wood core)
speedOFF+OFF (Stiga speed rating 9.0 out of 10)
thickness_mm5.7approx 5 mm
weight_g85-9485 plus or minus 5 g

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The Butterfly Innerforce Layer ZLC is soft ZLC carbon rated 8.7 with exceptional dwell time, perfect for spin generation and consistency. The Stiga Cybershape Carbon rates 8.4 with a distinctive hexagonal head shape, head-heavy balance adding natural acceleration, and speed rating of 9 out of 10 comparable to Butterfly Koto-ALC class blades.

Cybershape’s larger sweet spot is positioned higher on the blade per KTH lab tests, making it outstanding for blocking comfort on both forehand and backhand. However, its short dwell time challenges heavy topspin looping styles. The angular head takes adaptation but aids serve angles and bat angle awareness. Choose ZLC if you want maximum dwell time for spin-dominant play and placement precision. Choose Cybershape if you are a fast counter-attacker or backhand-dominant player wanting superior blocking and willing to adapt to the angular head shape.

FAQ

Which has better blocking comfort?

Stiga Cybershape Carbon is outstanding for blocking comfort on both forehand and backhand with its head-heavy balance.

Which is better for topspin looping?

Butterfly Innerforce Layer ZLC with its excellent dwell time is far better for heavy topspin and looping. Cybershape’s short dwell time makes looping challenging.

Which has bigger sweet spot?

Stiga Cybershape Carbon has exceptionally large sweet spot positioned higher on the blade. ZLC has smaller sweet spot.

What is the hexagonal shape advantage?

Cybershape’s distinctive head shape aids serve angles and bat angle awareness, helping players maintain better court position awareness.