Looking to take your vertical jump to the next level? Then check out this article on the 5 biggest killers of your monthly vertical jump increases!
Are you trying to increase your vertical jump to dunk for basketball? Then check out this shocking article on the 5 worst killers of vertical jump gains! (number 3 is shocking)
http://www.bestverticaldunktraining.com Click here to see how the Jump Manual avoided these 5 mistakes and how it increased my vertical 15 inches in 5 months...