grey ghost, maybe you need to read my original post again. i know how to score the 11, 10, 8 , 5, and zero. my question is that there is a difference between the ibo publication in the bowhunting world magazine, and the ibo web page. both writings are by the ibo, so which one is correct? do you score the arrows inside out, or touching the line. i know what the ibo site says, but i am also reading a publication by the ibo that states something different.