This technique is called A Stim, similar to the Graston technique but goes deeper. He also uses his elbow to get in deep.

Yes, definitely worth it, and I am taking in as much info as I can. They have pictures of all the exercises I have been doing. I put a book together of three different sets of exercises, seven in each, to rotate every six weeks. I'll do them twice a week and should be good to go.

Lisa