Babolat Viper Soft Juan Lebrón 3.0 vs Siux Electra St3 Stupa Pro

“The Viper Soft Juan Lebrón 3.0 takes the same 365g Black EVA formula that already works on the Technical Viper Soft and wraps it in Juan Lebrón's signature diamond shell. Power eases back from the standard Viper JL's tour-level peak to a still-strong 82, and in exchange control and comfort both climb into the high 70s/80s — a genuinely balanced racket rather than a compromise. Maneuverability improves too, so the head-heavy diamond feels less punishing to hustle at net. The catch is coverage: it is stocked at a single retailer so far, and priced at parity with the far more aggressive standard Viper JL, so this is not the discount play the Technical Soft is.”

“The ST3 Stupa Pro is where Stupaczuk's Siux line found its voice: a hybrid head with an even balance and an EVA core that hits harder than its manners suggest. Power 86 finishes points, and the frame stays composed enough through transitions that control 75 feels understated in practice. Comfort 67 and tolerance 66 keep it in firm territory, and the strike rewards conviction. Two generations on, pricing has settled at genuine-bargain levels (value 76). For advanced players who want signature-line aggression without current-season cost, the ST3 has aged into one of the smarter buys.”

Want a different head-to-head? Compare any rackets in our database side by side.