I have tried quite many of these vertical jump training systems, but the one which really worked best for me was this one by Jacob Hiller, called The Jump Manual. If you have been in this for a while, then you probably already know about this program, since it is one of the most used and more popular vertical jumping programs you can find on the net today, and the most effective you can get – I mean if you are really serious about learning how to increase your vertical jumping, using professional and proven methods.
Jump manual, Vertical Explosion Training Program, The Jump Manual