LOBALOT
Legend
Thanks! My other unsubstantiated theory: the hyper-g "style" of play is perfect for college: high spin to create aggressive consistency, say. Watching college tennis it certainly feels to me like there are fewer players hitting through the court. At the pro levels, outside of doubles, pace becomes more important (consistency is tables stakes), eg hitting big flat serves.
Actually they are ripping the cover off the ball and flattening a ball out and smacking it into the open court for a winner is taught early on.
It depends a lot on teaching but many pros are moving away from full western to a shorter swing/semi western so that players have that put away shot at the ready. In addition, a full western when pressured can elicit a short sitter which decent players eat for lunch.