I think my website offers some help as far as tuning and broadheads. www.broadheadtests.com This board is an excellent place to learn as well. The best thing to do is pick up a book on the subject , I think wallmart sells one by chuck Adams that is pretty good. Then after reading it over come here and ask specific questions. That way you will be able to cover all your base's and better understand some of the answers you get.