Yes I tune Blades, I sould say that I have no formal training on the subject. I read everything I could find and started on my own blades, Yes I had a some set backs.
You are right on the money they need Dish to run, But you need to know if the mill is Right or Left hand and the speed the mandrel turns. A Thin high speed saw will need more tension than a thick low speed saw. I am thinking of doing A blue print on the subject and have started taking pictures of the hammers, straight-edge's and Tension gauge I have.