Hi guys I'm new here and real green but I made a bakers dozen arrows stone points I knaped hardwood fore shafts and forsythia main shafts. They shoot real nice with my bow and I change foreshaft to field point shaft for target. Forsythia is ornamental shrub easy to find always needs to be trimmed arround here. They are hollow don't know spine but after bark is stripped and dry they stiffen up nice. Not sure if there primitive but works for me