That?s not what is happening with GPS tracked swing analysis. They don?t look to make massive swing changes. There are certain data points they look for to determine whether someone has some untapped power potential, and they make those adjustments. Some players generate good EVs but hit the ball on the ground too much. Nolan Stevens is currently one of those. With some tech aided swing changes, he may be able to tap into the considerable raw power he has by hitting the ball in the air more.