I feel autospec offers a reasonable product, with his Dynaco 70 rebuilds, although, I would not buy one myself. As someone mentioned above, autospec is a big crybaby, as, if he does not get what he wants, he goes public with his bantering, and tries to bring somebody down, in the interim. Very unprofessional. Likely, he was a very spoiled child, and, still is. I am sorry for this post, but needed to say it. Enjoy ! MrD.