check this out:
http://www.tsissg.com/711-amermac-tire-truerThis is the company that makes the truer. They also have a video you can click on at this link showing how it works that is very interesting. They are doing a modern radial tire on it.
I called the company and they gave me a list of the shops that had the truer in my state.
Then I called a few and found the place I mentioned.
Dave