Butterfly Innerforce Layer ZLC vs Donic Waldner Black Devil Carbon Balsa: Which Should You Buy?

UltraSpin comparison · 2026-06-11 · blade

Butterfly Innerforce Layer ZLCDonic Waldner Black Devil Carbon Balsa
Our rating8.7/107.8/10
feelSoft ZLC feel, woody touch, excellent dwell timestiff, minimal dwell
handleFL / ST / AN / CSAnatomic / Flared / Straight
plies7-ply, 5 wood + 2 ZL carbon (inner)7-ply: Koto outer + carbon + balsa core
speedOFF+OFF+
thickness_mm5.7approx 6.0mm
weight_g85-94around 84g

We may earn a commission from links on this page. Learn more.

The Innerforce Layer ZLC delivers soft ZLC feel with OFF+ speed, exceptional control and dwell for heavy topspin loops, low throw angle for close-to-mid-distance aggressive play, and high consistency. The Donic Waldner Black Devil Carbon Balsa is ultra-lightweight at 84g with exceptional flat-drive power and minimal dwell—first Donic balsa-carbon blade with enlarged sweet spot relative to earlier composites.

The Innerforce Layer ZLC suits advanced loopers seeking high-control, high-spin offensive blade with placement precision for close-to-mid-distance play. The Waldner Black Devil appeals to advanced flat-hit, smash-dominant attackers who want carbon speed in a featherlight package. Its near-zero dwell and stiff character make it poor for loop play.

FAQ

Which is better for topspin looping?

The Innerforce Layer ZLC—outstanding dwell and spin generation. The Black Devil’s near-zero dwell makes heavy topspin and loop play difficult.

Why does the Black Devil feel so light?

Balsa core and carbon construction—first Donic blade combining them, reducing weight to 84g for minimal arm fatigue during flat-hit dominated games.

Which is more versatile?

The Innerforce Layer ZLC—it handles loops and consistent play across distances. The Black Devil excels only at flat drives and smashes.

Is the Black Devil suitable for intermediate players?

No—too demanding for intermediate or loop-style players. Near-zero dwell punishes brushy spin technique.

How durable is the Black Devil?

Fragile koto and balsa veneers chip easily without edge tape. Immediate edge protection is essential.