this thread kinda makes me wonder how native americans and natives of other continents tuned their equipment. I mean, its easy for us to go online, order shafts, have them delivered to our door, use precision tools to tune them for perfect flight, analyze weights and spines, etc. They musta been good to just eyeball their measurements, feel the right weight, and watch the arrow flight... I read an article in a bowhunting magazine one time that said one tribe (lakota, i believe) 5 arrows was worth a horse. They sure were valuable. just some thoughts....