The Hitting Is A Guess Video/DVD Instructional Series is designed to help baseball and fastpitch softball hitters improve their swing mechanics. If you can execute the 3 key movements described in the video, you will hit the ball harder and straighter on a more consistent basis. This is the first baseball and fastpitch softball instructional video that offers proof that there is a BEST way to swing the bat. The fourth is the "Hitting Is A Guess Troubleshooting" video. This video will teach you the fundamentals of diagnosing swing problems in a baseball or fastpitch softball swing.