Donic Bluestorm Pro AM vs JOOLA Dynaryz ZGR: Which Should You Buy?

UltraSpin comparison · 2026-06-12 · rubber

Donic Bluestorm Pro AMJOOLA Dynaryz ZGR
Our rating8.4/108.3/10
best_sidebackhand / all-round forehandforehand
control9.2Medium-High
speed9.1Extreme
spin9.4Extreme
sponge_hardness47.5 degrees57.5 degrees Shore C (hard)
typeinvertedhybrid tacky tensor (pimples-in)
weight_uncut_g50approx 56g (cut to 157x150mm)

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Donic Bluestorm Pro AM delivers balanced speed, spin, and control suitable for intermediate-to-advanced versatile play. Tacky topsheet generates outstanding spin, multi-gear feel rewards varied techniques, and it handles loops, blocks, counters, and short game consistently on both wings. Durability is solid and weight is manageable at around 50g uncut.

JOOLA Dynaryz ZGR is a tacky-tensor hybrid offering exceptional spin for topspin and counter-loops. Unique blend of grip and catapult provides multiple gears, allowing both touch play and power shots, with blocking and passive control superior to pure AGR. Very hard sponge (57.5 degrees Shore C) demands high racket speed and technique, and heavy weight (approximately 56g cut) can cause arm fatigue. Short tight serving is harder compared to pure Chinese rubbers, and tacky feel durability fades after around two months of heavy use. Choose Pro AM for consistent, balanced, accessible all-court play; choose ZGR for advanced forehand attackers at mid-to-long distance seeking tacky-tensor hybrid advantages and willing to manage extreme hardness.

FAQ

Which is harder?

JOOLA Dynaryz ZGR is extremely hard at 57.5 degrees Shore C. Donic Bluestorm Pro AM at 47.5 degrees is significantly softer.

Which is lighter?

Donic Bluestorm Pro AM is lighter at 50g uncut. JOOLA Dynaryz ZGR is heavier at approximately 56g cut, potentially causing arm fatigue.

Which generates more spin?

JOOLA Dynaryz ZGR is noticeably spinnier, noted as spinnier and tackier than AGR sibling. Pro AM spin is excellent but less extreme.

Which is more accessible?

Donic Bluestorm Pro AM is accessible to intermediate-to-advanced players. ZGR demands advanced technique and physical strength.

How long does tacky feel last on ZGR?

Tacky feel durability is limited, fading after approximately two months of heavy use, requiring frequent replacement.