What do you get when you pair a biomechanics professor with PING’s vice president of performance? Swing speed. Lots of swing speed. Dr. Sasho MacKenzie and PING’s Marty Jertson are two of the ...
Four months ago, my husband, Paul, started using TheStack — a swing speed trainer co-created by biomechanist Dr. Sasho MacKenzie and Ping engineer Marty Jertson. TheStack system helps golfers increase ...