Greatings. Is there any instructional book associated with Charles Colin Lip Flexibility Exercises. For example, Eric Bolvin wrote something for how to use Arban, in term of sequences and progression of exercises. Similarly, there is also information for how to use Schlossberg. Is there something out there for how to progress or what was intended for this approach. I am currently looking at Vol. 3, and there is an obvious progression between sections, but I am not too sure what is intended for the different exercises "within" each section. BrotherBACH.