Jumpsoles...or this?

[Bigswole3420]

http://www.powerplyos.com/
if u scroll down, it says jumpsoles work the calf only with isn't very helpful while jumpsole reviews say that when you use most of ur leg power in ur calves it's better. which would you prefer?

[PolPow53]

delete this thread and we'll pretend you never asked this horrible question.

[Jhawk Fitness]

slap yourself for even considering jumpsoles. then go out and get Kelly Baggett's vertical jump bible.

[Blinkin215]

jump soles are pathetic, they have been proven to cause permanent damage and also decrease your stats.