oops, i meant lycometrics not plyometrics, they\'re exercises to build up explosive strength. here are a few samples, set up a parking cone, and stand to the side of it, and jump over it to the side and then back to your starting point, over and over again until you can\'t do anymore. Another is set up a sturdy chair, and stand flat footed infront of it, then explosivly using your calves jump onto the chair, then back down and repeat till failure. another is called the ice skater, just launch yourself sideways backand fourth(just imagine how ice skaters thrust back and fourth from one leg to the other. if you want more just ask, these should add at least a couple of inches to your verticle, i\'ve helped one of my friends put about 8 inches on, within a year.