ranger, i just had a "how to" article published in the bowyer's journal mag on how i make my cane arrows. the advantages of the foreshaft is it saves the main shaft of the arrow from breaking after impact. the impact forces or separating while the animal runs through the woods "breaks" the mainshaft off leaving the foreshaft to do more damage. they are very labor intensive but they work because i killed two hogs last year using foreshafted cane arrows. the foreshaft snapped off perfectly saving the mainshaft.