well once you get the shaft notched for the point
melt some pine pitch,apply pine pitch to the shaft and insert point
let that cool
you can shoot it just like that if you want
or you can insert point into notch on shaft,seperate the sinew strandes,chew some and till totaly pliable
and wrap tightly,but not so tight it breaks the sinew
or you can do it like i like doing it nad thats using the pine pitch and then wrapping with the sinew
heres a pic of a few i made last summer