Coello/Tapia enter as the reference pair: superior left-right symmetry (Coello’s left-side power + Tapia’s right-side creativity) and typically better conversion in big moments. Stupaczuk/Yanguas can threaten with pace, counterpunching and heavy cross-court pressure, but they must keep rallies neutral to avoid being stretched by Tapia’s transitions. In Buenos Aires P1 conditions, the slight edge stays with Coello/Tapia, likely in a tight two sets or three-set win.