yeh its good, 60% have said its bad, thats enough for me. i dont think that many ppl have done it on here tho and alot of them dont no what they talking bout if they havent tried it before or dont know much about jump training

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Age:15 Height: 5' 10" or so. Running Vertical Jump: about 33-35 inches
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Good, better, best. Never let it rest. Until your good is better and your better is best.
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