Ruiz/Rubio bring a steadier, more structured left-right balance, while Cardona/Leal typically rely on higher tempo and first-strike transitions. In Newgiza’s usually lively P2 conditions, Cardona/Leal’s power can spike, but it also increases error pressure under long exchanges. Slight edge to Ruiz/Rubio if they control pace and force extra balls; upset chance rises if Cardona/Leal dominate the net early.