I don't know about jumpsoles,hypergravity belts but as far as programs you should buy Athletic Advantage(the cd-rom version),I heard it's really good not only from people on the forum but other people as well.

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"I've missed more than 9000 shots in my career. I've lost almost 300 games. 26 times, I've been trusted to take the game winning shot and missed. I've failed over and over and over again in my life. And that is why I succeed."-Michael Jordan

"Shallow men believe in luck. Strong men believe in cause and effect."-Ralph Waldo Emerson


"Th-th-that that don't kill me can only make me stronger"-Kanye West

Standing Vertical: 24-24.5 inches
Running Vertical: 25-26 inches