Forty years in and Wilson is still tweaking the Pro Staff tennis racket ... in the bottom section of the frame. The tight string pattern is meant to improve feel and the frames are still headlight.

Since 1983, Wilson’s Pro Staff ... so stability improves in the Pro Staff without losing the feel of the racket. New for the 2020 version, engineers employed string mapping to add density ...

Next, when I was 15, came the black-and-green ... of its strings and picked up a college teammate’s racquet. It happened to be another orange-and-black icon, the midsize Wilson Pro Staff ...

Federer has long used the 90-inch Pro Staff version ... As part of Wilson’s Spin Effect rollout, the new line will include two different Spin Effect models with differing string patterns.