His book is really good. Also Hunt Golf Analytics does similar analysis on the tour players every year. Pretty interesting to see who is among the leaders in certain categories and how their performance stacked up.
My main takeaway from his research is to really practice the long game as that’s where the most gains can be made. I don’t really practice putting or chipping that much, other than to get a quick feel for speed, and it drives people crazy because they think I’m just pounding drivers and irons all day at the range, but the results speak for themselves. My misses are so much better around the green that I don’t need a heroic shot to get up and down anymore, and scores have dropped overall.
Unfortunately, these findings still aren’t fully embraced by many in the golf world, even though it’s slowly getting better. “Drive for show, putt for dough” is a term that can’t go away soon enough.