The golf industry is about a 2.5 Billion dollar a year industry. In the last twenty five years, with literally billions of dollars spent on development, tooling, and manufacturing of golf clubs, the average handicap has decreased by 2.1 strokes, and probably at least half of them are lying. There is a huge market of junk that is supposed to increase your swing speed to that rivaling tour players, that pretty much does nothing at all for the average golfer. If he swings faster he will only hit the ball further into the lake or woods. I have owned a bunch of guitars in my life, a number which I am actually ashamed of admitting to. The one thing I have found about them is that they are pretty much all the same. Which is also true of golf clubs.