http://ping.fm/4X1aM So, you can't dunk? Or maybe you just desire to increase your vertical leap for fun? That's just fine since regardless of the cause, you came to the fair place. I used to have a pathetic 16 inch vertical and being only 5'8, you can imagine dunking seemed like an impossibility. Really, it wasn't; it was much simpler than I thought it would be also.