Marchetti/Borrero look like the steadier pair for an Italy Major: higher percentage construction, better net management, and fewer “free” errors should translate well on the slower outdoor conditions typical in Italy. Saiz Vallejo/Talavan can threaten with pace and aggressive transitions, but they’ll need to win the volley battle early to avoid getting dragged into long, defensive exchanges. Slight edge to Marchetti/Borrero in two tight sets if they control the middle and serve/return phases.