So you have none to cite. When did “I haven’t anything to offer except my opinion” become synonymous with “tautological”? Is that an example of “granularity”? 
So you’re fine with the idea that up to half of chiropractors denigrate one of the most outstandingly successful public health initiatives in history? You should also be aware that the two biggest chiropractic organizations oppose mandatory immunization, the basis of any successful program:
*"Chiropractic’s two largest organizations oppose compulsory immunization. The ACA has acknowledged “routine vaccinations have been a proven and effective campaign in the control of many diseases.” [5] However, its current policy is:
The ACA supports each individual’s right to freedom of choice in his/her own health care based on an informed awareness of the benefits and possible adverse effects of vaccination.
The ACA is supportive of a conscience clause or waiver in compulsory vaccination laws thereby maintaining an individual’s right to freedom of choice in health care matters and providing an alternative/elective course of action regarding vaccination. [Adopted in 1998]
The International Chiropractors Association (ICA)'s current policy states:
The International Chiropractors Association recognizes that the use of vaccines is not without risk.
The ICA supports each individual’s right to select his or her own health care and to be made aware of the possible adverse effects of vaccines upon a human body. In accordance with such principles and based upon the individual’s right to freedom of choice, the ICA is opposed to compulsory programs which infringe upon such rights.
The International Chiropractors Association is supportive of a conscience clause or waiver in compulsory vaccination laws, providing an elective course of action for all regarding immunization, thereby allowing patients freedom of choice in matters affecting their bodies and health. [Adopted in 1993]
The ICA does not acknowledge benefit and even sells a book called Vaccination: 100 Years of Orthodox Research Shows that Vaccines Represent a Medical Assault on the Immune System, which contends that vaccines are ineffective and dangerous."*
NCCAM is a division of the NIH that was put together to investigate (and in the view of some lawmakers, was intended to validate) different types of complementary and alternative medicine. It is not a “pro chiro site”, although the page on chiropractic glosses over or completely ignores the prevalence of chiropractic woo (such as “adjusting” peoples’ spines to deal with internal complaints).
Neither this site or the other one you listed represent examples of what I asked you for, namely:
“Instead of the equivalent of personal testimonials, mswas, how about backing your claims here by showing us a position statement by any major chiropractic organization, recognizing the evidence-based limitations of chiropractic to treating musculoskeletal complaints and urging people to seek their primary care from physicians?”
And it shows.