Has anyone else heard of this or used this or do you know someone who has? did it work? how well?
I'm trying to decide if I want to buy this or not, i have been using jumpsole workouts, but i want a bigger increase in my vertical, any help would be great
Jumpmanual.com
I'm trying to decide if I want to buy this or not, i have been using jumpsole workouts, but i want a bigger increase in my vertical, any help would be great
Jumpmanual.com