as a new as i am at building selfbows, i havecome to trust more experienced builders/shooters than myself. several bowyers , batman, mr pat, stiks -n-strings, james parker, and mike treadway have all examined my work some with more intuitive pointers and some with approval or both. all in the interest in making a better bow.i trust these people with their expertise and opinions. i also usually ask if someone has had experience with selfbows. if not, i try to give a tutorial. oh, i almost forgot, i shot the first selfbow i ever made with bernie dunn. nobody can pass up the chance to shoot with bernie, even with a new bow