heres a idea, if you made a foreshaft. then coppied it many times over so you had many. took that first foreshaft, and a bamboo, reed, or river cane shaft. dig a small hole put shaft in hole sit by hole with your feet on shaft holding it in position. with foreshaft in hands spin it back and forth till it seats well. pop it out. do the next shaft, then the next, then the next so on and so forth. you may need to use a couple a fore shafts to make a whole bunch of arrows. now with minor tweeking the rest of your foreshafts will fit all your shafts. mount whatever on each of these, make your arrows, there ya go. your going to have to make small slits lengthwise into your shafts were the accept the fore shaft and wrap with sinew. why? because sinew stretches. it will help "grab" your foreshaft with whatever point on it. just a couple thoughts here . Tony