i totally agree with jumping rope and owning some ankle weights.
Air alert 2 is also a great program. i added 16 inches with that one summer. im a 5' 10" point gaurd in 9th grade and i can dunk. (did i also mention that im white?
)i got the program for free whereas others pay for it. if u have a peer to peer file sharing program suck as limewire or kazza or bearshare, it should be easy to find something on there.
i found the program when i did a google image search on air alert 2. i dont remember where it exactly is, but browse through and i assure u that u will find it. ur weight shouldnt be a problem with u being 6 foot. just play basketball as much as you can and try to get your ankles and calves stronger in the weight room.
hope this helps. tell me if u find it and message me in the future and tell me you gains. good luck.