Below is a link to a playlist that contains over 90 minutes of footage from Jump Stretch founder Dick Hartzell. I’ve previously posted a few of the clips within the playlist but some of the originals were removed from Youtube. The revised playlist now has everything in one place.
If you have any interest in band training, Dick Hartzell is the man to see. He is extremely knowledgeable and always eager to help. I have spoken to him several times and he always has something useful to share.