Before you do any tuning on your bow you should make sure that your arrow's static spine is real close to what you need for that particular bow, your particular draw length and the draw weight you are gonna shoot at. Then the dynamic spine can be manipulated by adjusting the arrow length, front weight and back weightbut you need to have an idea of what you need before you start.

You can paper tune, BH tune, bareshaft tune, group tune, walkback tune andfrench tune but if you start out with the wrong spined arrow all you are doing is adjusting your bow from optimum centershot to something that accomodates auntuned arrow.