Arroyo/Aguirre is the higher-volatility pairing: they can spike with aggressive first-strike padel, but their error rate rises if they’re pushed into long, high-bounce rallies. Gil/Castaño profiles as the steadier duo—more disciplined in building net position and exploiting cross-court pressure—well-suited to Valladolid’s typically lively conditions. If Gil/Castaño control tempo and target decision-making under pressure, they’re slight favorites; Arroyo/Aguirre win if they dominate early net exchanges and convert breaks quickly.