Prince gave its popular O3 White the Speedport treatment. Now, instead of the round O-Ports that are on the predecessor, this model has larger rectangular ones located at four points around the head. The design is meant to produce greater racquet-head speed and a larger sweet spot, which testers found hard to miss. Baseliners who like to rip the ball will appreciate the power and spin potential of this White. You’ll need that spin for safety, because some testers felt the pop could be too much. It’s stable and forgiving off the ground, with almost zero feedback. Volleys got a passing grade, but the heavier Pro model got higher marks at net because of its increased stability. The Pro is new to the White family, and its dense string pattern and heavier weight are better suited for advanced all-court play than the standard model.