Why do you need a liability release for someone training on their own?
I am new to this site but have been crossfitting for 2.5 months now and am interested in improving my jumping abilities and establishing a good base for parkour.
If you are not willing to tell everyone about your new program until tested, well I can understand your need for privacy if you were going to register your intellectual designs. However, as a sharing community, I would be happy to hear anyone's ideas on improving jumping abilities.
My first thoughts are practicing box jumps and long jumps on a regular basis along with some of the explosive oly lifts and thrusters with a good jump.
I even thought about purchasing a weight vest, although costly.
Anyone else have some thought provoking ideas?