For the most part, these are worthless. The only gadget that you can hit the ball with is a club, so you might as well get to know it. Of the hundreds of products you see advertised in 2-hour infomercials by some old guy who used to be good, there are a few that can be worth your money. But don't trust any that claim to be able to take 10 strokes off your handicap with 10 minutes of practice 3 times a week. These devices may have good info and be built on solid mechanics, but ultimately they are just gimmicks.
Think about this. Most of these gadgets work based on muscle memory. And they do work, at first. Your slice straightens out, you get more distance, you putt better, whatever. Then your ego jumps in and says "this is it, the magic solution to all of life's problems!" This is turn leads to you trying to reproduce the results. Too bad your ego know nothing about the thousands of complicated motions that go into swinging a club. Thats why many amateurs have jerky, robotic, unrhythmic swings.
Think about this. Most of these gadgets work based on muscle memory. And they do work, at first. Your slice straightens out, you get more distance, you putt better, whatever. Then your ego jumps in and says "this is it, the magic solution to all of life's problems!" This is turn leads to you trying to reproduce the results. Too bad your ego know nothing about the thousands of complicated motions that go into swinging a club. Thats why many amateurs have jerky, robotic, unrhythmic swings.
