My question would be to the original poster - Was your CI using it in the traditional sense, or in a way to deliver instrument-assisted soft tissue mobilization. If it is the former, run from the clinical site. If it is the later, use this as a spring board to discuss the underlying theory behind IASTM (Graston, ASTYM, etc.). There is decent theory behind IASTM, and some data that suggests increased proliferation of fibroblasts, and improved fiber orientation, after applciation of IASTM to rat tendons. I am not aware of any good outcome studies.
So, Akira, if your CI can discuss these things intelligently, you'll have a nice learning opportunity re:IASTM. If they can't, and you hear things like "I don't know - It just works", you'll have learned something as well, but it won't be about IASTM.
Truthseeker,
It sounds like you don'tt use IASTM. What is your treatment of choice for a typical tendonosis?