It's 2019 and just found your blog site on Onsen Technique.
I learned this amazing system directly from Rich Phaigh in 1990 via an 80-hour intensive retreat workshop. He has since sold his practice.
To be very clear, this system of musculoligamentoskeletal assessment, palpation and correction have not only opened up other avenues of observation and corrections but has been been consistently necessary in every one of my sessions offered as an Orthopedic Massage Therapist in California. The results are daunting and one's awareness to most given condition will be easier for observation and solution. I have yet to meet anyone who completed this course in California, much less know about it. Why is that??

To anyone who is serious about helping others, I recommend this technique along with other osteopathic modalities ie. CST, Myofascial Therapy, NMT and Kochi Shiatsu.
Thank you!