Review on Blast Motion Golf Swing Analyzer: Master Your Game with New Short Game and Bunker Modes, Slo-Mo Video Capture, and iOS/Android Compatibility! by Chase Hosea

This is an amazing device. I have about 1200 strokes in the practice and this has helped me resolve some of the stroke issues that have plagued me for years (pulling). I didn't use it to its full potential, but that's not what I bought it for either. You only need a space the size of your stroke to use it. Works perfectly. I don't recommend it to my friends because I don't want them to hit me. Measuring the change in facial rotation is invaluable when handing over. This is 33% of the stroke and probably the hardest to master. It helps to have an idea of what these numbers mean. In my case, I developed an awkward habit of keeping the head of the racquet in front of my hands and this caused me to pull the ball. I had no idea what was causing my cravings until I bought it. It said I increased my stroke by 3 degrees, and I was able to conclude that this was caused by the club passing my hands and closing my face. Definitely worth the money if you're struggling with a flat stick.