Going back to the high skip experiment: try the skips with varying degrees of backswing. Try a broad jump and do the same. Kick a soccer ball or hit a softball with varying degrees of back swing. Watch these two videos and note how overlap creates load:
https://www.youtube.com/watch?v=lBMA2wWuqh8
https://www.youtube.com/watch?v=OQz3mXbp2Ds
Stretch and fire...
https://www.youtube.com/watch?v=lBMA2wWuqh8
https://www.youtube.com/watch?v=OQz3mXbp2Ds
Stretch and fire...