Donic Bluestorm Pro AM vs Yasaka Rakza Z: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

Donic Bluestorm Pro AMYasaka Rakza Z
Our rating8.4/108.6/10
best_sidebackhand / all-round forehandforehand
control9.2high
speed9.1medium
spin9.4extreme
sponge_hardness47.5 degrees50 degrees (medium-hard; Extra Hard version around 57 degrees)
typeinvertedhybrid tacky tensor
weight_uncut_g5072

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Yasaka Rakza Z earns 8.6 rating and specializes in exceptional, low-slip spin on loops, backspin openings, and serves, with surprisingly high control and long dwell time for a hard rubber. Tacky topsheet grips the ball making heavy backspin lifts easy, with strong linear kick on full strokes. Excellent durability and great value versus Dignics 09C and Tenergy. However, it is heavy causing arm or wrist fatigue especially on carbon blades, high throw angle requires closed blade angle, and it is weak and slow at less than full power or out of position.

Bluestorm Pro AM delivers lighter, more versatile balanced play across all power levels and positions. Rakza Z targets proactive forehand loopers comfortable with full strokes and heavy placement. Bluestorm Pro AM suits all-rounders seeking equipment that performs at every power level.

FAQ

Which generates more spin?

Rakza Z at 8.6 rating achieves extreme spin, especially on serves and loops. Bluestorm Pro AM at 8.4 delivers excellent spin with balanced approach.

Weight impact?

Rakza Z is heavy and causes arm fatigue on carbon blades. Bluestorm Pro AM at 50g is much lighter.

Throw angle difference?

Rakza Z has high throw angle requiring closed blade angle. Bluestorm Pro AM offers balanced arc.

Off-power play?

Rakza Z is weak and slow at less than full power. Bluestorm Pro AM maintains consistent performance at varied power.

Value comparison?

Rakza Z offers great value versus Dignics and Tenergy. Bluestorm Pro AM carries premium pricing.