hi, i have been making some arrows ,which i am pleased with apart from the position of the fletchings to the nock .i am using a blitzenberger dialajig .but to me the flethchings are in the wrong place.should the cock feather be right above the nock ,and the other two fletchings either side ,so as when the arrow is loosed,the two coloured fletchings should have minimal contact with the bow.mine seem a bit squeegee ! i must not be using the jig properly,do i adjust it for different diameter shafts ? josh sent it to me for a try ,but this is the first time i have seen such a device ........