The Jump Manual – A New Vertical Jump Program For Adding 10 Inches CALVERTON, None (PR Buzz) February 1, 2013 — The Jump Manual, an all-in-one training program created by acclaimed athlete trainer, Jacob Hiller, reveals the secrets on how to add 10 inches to vertical jump. The said program is geared towards helping athletes and sports enthusiasts improve their quickness and vertical jump through providing practical and effective techniques. The Jump Manual works compatibly with all computer platforms such as Linux, Mac and Windows. According to Hiller, it is the sole program that can target all the aspects of …