You should also check more critisizing references if you want to have a more objective opinion about Trps...Quintner for example has published many articles on the subject based on clinical cases which show that Trigger points is nothing but a MANIFESTATION of other dysfunctions....In my own little experience (if i was 60 years old i would only say HUGE) when u treating succesfully a patient, u often observe that Trps dont longer exist...For example on a discogenic situation on lumbar spine, when Trps are in erector spinae or gluteus muscles, and after treatment there is no "tenderness" over this area...